POSITRON CORP
10KSB, 1999-04-14
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   Form 10-KSB

                                  ANNUAL REPORT
        UNDER SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

                   For the fiscal year ended December 31, 1998
                        Commissions file number: 0-24092


                                    Positron


                               A Texas Corporation
            1304 Langham Creek Drive, Suite 310, Houston, Texas 77084
                                 (281) 492-7100


Securities registered under Section 12(b) of the Exchange Act:

                                      NONE

Securities registered under Section 12(g) of the Exchange Act:

                          Common Stock, $.01 par value

Check  whether the issuer (1) filed all reports  required to be filed by Section
13 or 15(d) of the Securities Exchange Act of 1934 during the past 12 months (or
for such shorter  period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.

                              Yes   X         No
                                  -----          -----

Check if there is no disclosure of delinquent  filers in response to Item 405 of
Regulation S-B contained in this form, and no disclosure  will be contained,  to
the  best  of  registrant's   knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part III of this Form  10-KSB or any
amendment to this Form 10-KSB.[X]

Issuer's revenues for fiscal year ended December 31, 1998: $2,008,000

As of March 18, 1999, there were 14,571,838  shares of the  Registrant's  Common
Stock, $.01 par value outstanding.


Documents incorporated by reference: None

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                                       1
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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                                     PART I

The Company is  including  the  following  cautionary  statement  in this Annual
Report on Form 10-KSB to make  applicable  and take advantage of the safe harbor
provision  of the  Private  Securities  Litigation  Reform  Act of 1995  for any
forward looking statements made by, or on behalf of the Company. Forward looking
statements include statements concerning plans,  objectives,  goals, strategies,
future events or performance  and underlying  assumptions  and other  statements
which  are  other  than  statements  of  historical  facts.  Certain  statements
contained herein are forward looking statements and, accordingly,  involve risks
and  uncertainties  which  could  cause  actual  results or  outcomes  to differ
materially from those expressed in the forward looking statements. The Company's
expectations,  beliefs  and  projections  are  expressed  in good  faith and are
believed  by  the  Company  to  have  a  reasonable  basis,   including  without
limitations,  management's  examination  of historical  operating  trends,  data
contained in the Company's  records and other data available from third parties,
but  there  can be no  assurance  that  management's  expectations,  beliefs  or
projections  will result or be achieved  or  accomplished.  In addition to other
factors and matters  discussed  elsewhere  herein,  the  following are important
factors that, in the view of the Company,  could cause actual  results to differ
materially from those discussed in the forward looking  statements:  the ability
of the  Company  to  attain  widespread  market  acceptance  of its  POSICAM(TM)
systems;  the ability of the Company to obtain  acceptable  forms and amounts of
financing to fund future  operations;  demand for the  Company's  services;  and
competitive  factors.  The  Company  disclaims  any  obligation  to  update  any
forward-looking  statements to reflect  events or  circumstances  after the date
hereof.

                         Item 1. Description of Business
General

Positron  Corporation  (the "Company") was incorporated in the State of Texas on
December 20, 1983,  and commenced  commercial  operations  in 1986.  The Company
designs,  manufactures,  markets and services,  advanced medical imaging devices
utilizing  positron emission  tomography ("PET") technology under the trade-name
POSICAM(TM) systems. Unlike other currently available imaging technologies,  PET
technology  permits the  measurement of the  biological  processes of organs and
tissues as well as  producing  anatomical  and  structural  images.  POSICAM(TM)
systems,   which  incorporate  patented  and  proprietary   technology,   enable
physicians to diagnose and treat patients in the areas of cardiology,  neurology
and  oncology.  The Food and Drug  Administration  ("FDA")  approved the initial
POSICAM(TM)  system for  marketing in 1985,  and as of December  31,  1997,  the
Company has sold twenty one (21) POSICAM(TM)  systems, of which fifteen (15) are
in leading  medical  facilities in the United  States,  two (2) are installed in
international  medical  institutions,  one (1) is awaiting governmental approval
for installation at a facility in Japan and three (3) are no longer operational.
The Company  presently  markets its POSICAM(TM)  systems at list prices of up to
$2.0 million  depending  upon the  configuration  and  equipment  options of the
particular system.

The  following  table  provides  summary  information  regarding  the  Company's
installed base of POSICAM(TM) systems, which were operational as of December 31,
1998:

<TABLE>
<CAPTION>
                                                                                        Date of
Site                            Location          Clinical Application             Installation

<S>                             <C>               <C>                                     <C> 
Prototype:
U.T. Health Science Center      Houston, TX       Neurology/Cardiology                    1985

POSICAM(TM) Systems:
Saint Joseph's Hospital         Atlanta, GA       Cardiology                              1988
Cleveland Clinic Foundation     Cleveland, OH     Neurology/Cardiology                    1988
Memorial Hospital               Jacksonville, FL  Oncology/Cardiology                     1988
Kennestone Hospital             Marietta, GA      Cardiology                              1989
Medical City Dallas             Dallas, TX        Cardiology                              1990
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                                       2
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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Yale/Veterans Adm.              New Haven, CT     Neurology/Oncology/Cardiology           1991
Beth Israel                     New York, NY      Cardiology                              1991
Our Lady of The Lake            Baton Rouge, LA   Cardiology                              1992
Crawford Long Hospital          Atlanta, GA       Cardiology                              1992
Hermann Hospital                Houston, TX       Neurology/Oncology/Cardiology           1993
Hadassah Medical Organization   Israel            Neurology/Oncology/Cardiology           1995
Bio-Metabolic, Inc.             Detroit, MI       Cardiology/Oncology                     1995
Bergan Mercy Hospital           Omaha, NE         Cardiology/Oncology                     1995
Buffalo Cardiology & Pulmonary
 Associates                     Buffalo, NY       Cardiology                              1995
University of Madrid            Spain             Cardiology/Oncology/Neurology           1995
Baptist Hospital                Nashville, TN     Cardiology/Oncology                     1996
Imatron                         Japan             Cardiology/Oncology                     1997
</TABLE>

PET technology is an advanced imaging  technique,  which permits the measurement
of the  biological  processes  of  organs  and  tissues  as  well  as  producing
anatomical and structural  images.  Other advanced imaging  techniques,  such as
magnetic  resonance imaging ("MRI") and computerized  axial tomography  ("CAT"),
produce anatomical and structural images, but do not image or measure biological
processes. The ability to measure biological abnormalities in tissues and organs
allows  physicians to detect  disease at an early stage and provides  physicians
with information,  which would otherwise be unavailable,  to diagnose and manage
the treatment of disease. The Company believes that PET technology can lower the
total cost of managing certain diseases by providing a means for early diagnosis
and  reduction  of  expensive  invasive  or  unnecessary  procedures,   such  as
angiograms or biopsies which,  in addition to being costly and painful,  may not
be necessary or appropriate.

Commercial  utilization  of PET  technology  commenced in the  mid-1980s and the
Company is one of several commercial manufacturers of PET imaging systems in the
United States.  Although the other  manufacturers are substantially  larger, the
Company believes that its POSICAM(TM)  systems have proprietary  operational and
performance  characteristics,  which may give it certain performance  advantages
over other  commercially  available  PET systems.  Such  performance  advantages
include the POSICAM(TM)  systems high count-rate  sensitivity,  which results in
faster    imaging,    an   enhanced    ability   to   use   certain   types   of
radiopharmaceuticals,  which  minimize  patient  exposure to radiation,  and its
ability to minimize false positive and false negative diagnoses of disease.  The
industry  in which the  Company is  engaged  is,  however,  subject to rapid and
significant technological change. There can be no assurance that the POSICAM(TM)
systems can be upgraded to meet future  innovations  in the PET industry or that
new technologies will not emerge, or existing technologies will not be improved,
which would render the  Company's  products  obsolete or  non-competitive.  (See
"Item   1.    Description   of   Business-Risks   Associated   with   Business
Activities-Substantial Competition and Effects of Technological Change.")

The Company's primary focus to date has been on the clinical  cardiology market,
where its  POSICAM(TM)  systems have been used to assess  diseases,  such as the
effect of arterial blockages and heart damage due to heart attacks.  In 1994 and
1995,  the Company made  technological  advances  which allowed it to market its
products to the neurological and oncological markets.  Neurological applications
of POSICAM(TM)  systems include  diagnoses of certain brain  disorders,  such as
epileptic seizures,  dementia,  stroke,  Alzheimer's disease, Pick's disease and
Parkinson's disease. In oncology,  POSICAM(TM) systems are used in the diagnosis
and  evaluation of tumors of the bone and various organs and tissues such as the
brain, liver, colon and breast.

Medical Imaging Industry Overview

Diagnostic  imaging allows a physician to assess disease,  trauma or dysfunction
without the  necessity of surgery.  The  diagnostic  imaging  industry  includes
Ultrasound,  X-ray,  MRI,  CAT,  and Nuclear  Medicine  (which  includes PET and
Single-Photon Emission Computed Tomography (SPECT). MRI technology uses powerful
magnetic fields to provide  anatomical and structural  images of the brain,  the
spine and other soft tissues,  as well as  determining  the location and size of
tumors.  CAT scans use X-ray beams to obtain anatomical and structural images of
bones and organs.  Nuclear medicine focuses on providing  information  about the
function  and  biological  processes  of organs and  tissues  through the use of
radiopharmaceuticals.
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                                       3
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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The first  prototype  PET scanner was  developed  in the mid 1970s and the first
commercial PET scanner was constructed in 1978. Approximately 95 PET systems are
currently operational in the United States and approximately 140 PET systems are
in commercial use internationally.  Of the PET systems currently  operational in
the United States, 15 systems were sold by the Company.

PET Technology

The PET imaging  process begins with the injection of a  radiopharmaceutical  (a
drug  containing  a  radioactive  agent)  by a  trained  medical  person  into a
patient's bloodstream. The injected  radiopharmaceutical  undergoes a process of
radioactive  decay,   whereby  positrons   (positively  charged  electrons)  are
converted  into light  energy,  or photons.  These  photons are  detected by the
POSICAM(TM)   systems.   The  source  of  the  photons  is  determined   and  is
reconstructed  into a color image of the  scanned  organ  utilizing  proprietary
computer  software.  Since certain  functional  processes in the organ,  such as
blood  flow,   metabolism   or  other   biochemical   processes   determine  the
concentration of the radiopharmaceutical,  the brightness or color at each point
in the PET image directly maps the vitality of the  respective  function at that
point within the organ.

PET imaging is an accurate  non-invasive  method of  diagnosing or assessing the
severity of coronary  artery  disease.  Unlike other imaging  technologies,  PET
technology  allows a  physician  to  determine  whether  blood flow to the heart
muscle is normal,  thereby identifying  narrowed coronary arteries,  and whether
damaged  heart  muscle is viable and may benefit from  treatment  such as bypass
surgery or angioplasty.

In  neurology,  PET  imaging is now being used as a  surgical  planning  tool to
locate the source of  epileptic  disturbances  in patients  with  uncontrollable
seizures.  In other neurological  applications,  PET is used in the diagnosis of
dementia, Alzheimer's disease, Pick's disease and Parkinson's disease and in the
evaluation of stroke severity.

In oncology,  PET imaging is currently  used to measure the  metabolism of tumor
masses after surgery or chemotherapy.  Clinical experience has shown that PET is
more  accurate  than  CAT  scans  or MRI in  determining  the  effectiveness  of
chemotherapy and  radiotherapy in the treatment of cancer.  Scans used to assess
suspected breast cancer are still in the experimental  stage.  Whole body scans,
however, are now performed with PET to survey the body for cancer.

The  radiopharmaceuticals  (together with the radioactive  substances  contained
therein) employed in PET scanning are used by the organ in its natural processes
(such as blood flow and metabolism)  without affecting its normal function,  and
quickly  dissipate  from the body.  Radiopharmaceuticals  used in PET procedures
expose patients to a certain amount of radiation,  which is measured in units of
rads.  Exposure to radiation can cause damage to living tissue,  and the greater
the  radiation  exposure  the greater  the  potential  for  damage.  Certain PET
procedures  expose a patient to less  radiation  than would be  associated  with
other imaging  technologies.  A PET cardiac scan, using the  radiopharmaceutical
Rubidium-82,   results  in  exposure  of   approximately   0.096  rad,  while  a
neurological,  PET scan  results  in  exposure  of  approximately  0.39 rad.  In
contrast,  a typical chest X-ray results in exposure of  approximately  0.15 rad
and a CAT scan results in exposure to between approximately 0.5 rad and 4.0 rad,
depending on the procedure.

Radiopharmaceuticals  used in PET  technology  can be created  from many natural
substances including carbon, oxygen, nitrogen and fluorine. The PET procedure to
be    performed    determines    the   type   of    radiopharmaceutical    used.
Radiopharmaceuticals  are made ready for use at a clinic or hospital by either a
cyclotron or generator.  Cyclotrons  require an initial capital  investment in a
range up to $2 million, additional capital investment for site preparation,  and
significant annual operating  expenses.  A generator requires an initial capital
investment of approximately  $50,000,  no additional capital investment for site
preparation,  and monthly  operating  expenses of approximately  $25,000.  While
POSICAM(TM)  systems  have been  designed  to be used with  both  cyclotron  and
generator processed radiopharmaceuticals,  they have proprietary design features
which enhance their  ability to use  generator  processed  radiopharmaceuticals,
thereby  allowing a clinic or hospital which intends to focus on certain cardiac
PET  applications  to avoid  the  significant  capital  and  operating  expenses
associated with a cyclotron.
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                                       4
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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Marketing Strategy

The Company  initially  targeted clinical  cardiology as its marketing  strategy
based on research  conducted at the University of Texas Health Science Center in
Houston,  Texas which showed the  commercial  potential of clinician  cardiology
applications  of PET imaging.  With the  development  of the  POSICAM(TM) HZ and
POSICAM(TM) HZL series,  Positron is pursuing the full oncology,  cardiology and
neurology related PET application markets.

The Company  relies on referrals  from users of the  Company's  existing base of
installed  scanners,  clinical  presentations  at  professional  conferences  by
customers of the Company, and published articles in trade journals to market its
systems.

The POSICAM(TM) System

At the heart of the  POSICAM(TM)  system is its detector  assembly which detects
positron  emissions and electronic  circuits that pinpoint the location of these
positron  emissions.  POSICAM(TM) systems are easy to use and are not physically
confining, thereby not intimidating to patients.  POSICAM(TM) scans are commonly
performed on an outpatient basis.

The Company's POSICAM(TM) system compares favorably with PET systems produced by
other  manufacturers  based  upon  count  rate and  sensitivity.  Count rate and
sensitivity of an imaging system determines its ability to detect,  register and
assimilate the greatest  number of meaningful  positron  emission  events in the
shortest  period  of time.  The  favorable  count  rate and  sensitivity  of the
POSICAM(TM)  systems  results in good  diagnostic  accuracy as measured by fewer
false  positives and false  negatives.  Further  benefits of high count rate and
sensitivity  include  faster  imaging  and the  ability  to use short  half-life
radiopharmaceuticals,   thereby  reducing  patient  exposure  to  radiation  and
potentially reducing the capital cost to some purchasers through the elimination
of the need for a cyclotron for certain cardiac applications.

The detector assembly  consists of crystals,  which scintillate (give off light)
when exposed to positron emissions, and photomultiplier tubes, which are coupled
to the crystals and convert the  scintillations  into electrical  impulses.  The
Company  employs  its  own  patented  staggered  crystal  array  design  for the
POSICAM(TM)   detectors  which,  unlike  competing  PET  systems,   permits  the
configuration  of the  detector  crystals  into  overlapping  series to create a
higher  quality  image by  eliminating  image  sampling  gaps.  This  feature is
important  since  under-sampling  or  gaps  in  sampling  can  contribute  to an
inaccurate  diagnosis.  The crystal  array design also reduces "dead time" - the
time interval  following the detection and  registering  of a positron  emission
during which a subsequent event cannot be detected.

The POSICAM(TM)  system creates a high number of finely spaced image slices.  An
image slice is a cross-sectional view that is taken at an arbitrary angle to the
angle of the organ  being  scanned,  and not  necessarily  the angle a physician
wishes to view.  The  POSICAM(TM)  computer can then adjust the  cross-sectional
view to create an image from any  designated  angle.  The high  number of finely
spaced image slices created by the  POSICAM(TM)  system enhances the accuracy of
the created image.

An integral part of a POSICAM(TM)  system is its  proprietary  data  acquisition
microprocessor and its application  system software.  The Company's software can
reconstruct  an  image  in five  seconds  or  less.  The  Company  has  expended
substantial effort and resources to develop the computer software to insure that
it is  user-friendly  and  clinically  oriented.  The only  personnel  needed to
perform  clinical  studies with the  POSICAM(TM)  systems are a trained nurse, a
trained  technician  and an  overseeing  physician  for patient  management  and
safety.
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                                       5
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
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POSICAM(TM) HZ and HZL. In addition to the basic POSICAM(TM) system, the Company
offers  two  advanced  versions  of its  basic  system  which  are  known as the
POSICAM(TM) HZ and the POSICAM(TM)  HZL.  Oncologists and  neurologists  require
enhanced  resolution  and a large  field  of view to  detect  small  tumors  and
otherwise  scan large  organs,  such as the liver.  The  POSICAM(TM)  HZ and HZL
employ new detector  concepts to satisfy these needs while  maintaining the high
count  rate  sensitivity  of the basic  POSICAM(TM).  In May 1991,  the  Company
received  approval from the FDA to market the POSICAM(TM)HZ and in May 1993, the
Company received a patent for the innovative light guide and detector staggering
concepts used in the  POSICAM(TM) HZ and HZL. In July 1993 the Company  received
FDA approval to market in the United States the  POSICAM(TM)  HZL,  which has an
even  larger  field of view than the  POSICAM(TM)  HZ  facilitating  whole  body
scanning and the scanning of large organs. As the market for PET systems matures
and price  sensitivity  among  purchasers  increases,  the Company believes that
interest in the POSICAM(TM)  HZ, which costs less than the POSICAM(TM)  HZL, may
increase. The Company also believes that the special features of the POSICAM(TM)
HZL enhance its usefulness in oncology and neurology applications.

Customer Service and Warranty

The Company has five (5) field  service  engineers in the United States who have
primary  responsibility  for supporting and maintaining the Company's  installed
equipment base. In addition,  the Company has field  engineers  involved in site
planning,   customer   training,   sales  of   hardware   upgrades,   sales  and
administration of service  contracts,  telephone  technical support and customer
service.

The company typically  provides a one-year warranty to purchasers of POSICAM(TM)
systems.  However,  in the past, the Company  offered  multi-year  warranties to
facilitate  sales of its systems.  Following  the warranty  period,  the Company
offers  purchasers  a  comprehensive  service  contract  under which the Company
provides all parts and labor,  system  software  upgrades and unlimited  service
calls. The Company currently provides service to all of its POSICAM(TM) systems,
ten (10) of which are under  formal  service  contracts.  Two (2) of the service
contracts  are  automatically  renewed  on a  month-to-month  basis  and one (1)
automatically renews on a year-to-year basis. Of the remaining eight (8) service
contracts,  three (3) expire  during  1999,  two (2) expire in 2000,  and two(2)
expire in 2001.  The  Company  is  currently  negotiating  to extend  all of the
service contracts which expire in 1999; however,  there can be no assurance that
such extension will be obtained.

The Company's  service goal is to maintain  maximum system uptime.  Success of a
clinical site is largely dependent on patient volume during normal working hours
and therefore  equipment uptime and reliability are key factors in this success.
Records  compiled  by the Company  show an average  uptime more than 95% for all
installed POSICAM(TM) systems during 1998 and 1997.

Competition

The Company faces competition from two (2) other commercial manufacturers of PET
systems and from other imaging  technologies,  primarily SPECT. The Company does
not  believe  that  MRI and CAT scan  imaging  represent  significant  competing
technologies.  The Company  views MRI and CAT scan  imaging to be  complementary
technologies to PET, in that PET, MRI and CAT scans each provide information not
available from the others.

The Company's primary  competition from commercial  manufacturers of PET systems
comes from General  Electric  Company ("GE") and Siemens Medical  Systems,  Inc.
("Siemens"-in  a joint venture with CTI, Inc. of Knoxville,  Tennessee).  GE and
Siemens  have  substantially  greater  financial,  technological  and  personnel
resources  than  the  Company.   See  "Item  1.  Description  of  Business--Risk
Associated  with  Business  Activities--Substantial  Competition  and Effects of
Technological  Change  and  General  Electric  Transaction".  In  addition,  two
Japanese  manufacturers,  Hitachi and Shimadzu,  have  manufactured and sold PET
scanners in Japan but not in the United States.
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                                       6
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The primary competing  technology in the nuclear medicine industry is SPECT. The
Company believes that the primary reason SPECT competes successfully with PET is
the lower cost of the SPECT  systems.  A SPECT system can cost between  $175,000
and $750,000 as compared with up to $2.0 million (depending on configuration and
equipment options) for a POSICAM(TM) system.  However,  the Company believes its
POSICAM(TM) system is a better diagnostic tool in that the Company's systems are
able to create  more  accurate  images than SPECT  imaging.  Unlike  SPECT,  the
radioactive  substances  used by the  Company's  system  is based  on  naturally
occurring  substances  within  the body and allow  the  POSICAM(TM)  systems  to
directly  measure  the  metabolic  processes  and changes  occurring  within the
scanned organ, thus providing a more accurate image.

High field MRI  technology,  an advanced  version of MRI, is in the  development
stage,  but is a potential  competitor to PET in certain  neurology and oncology
applications.  Presently,  high  field MRI may be useful in  performing  certain
research  (non-clinical)  applications  such as blood  flow  studies  to perform
"brain mapping" to localize the portions of the brain associated with individual
functions (such as motor  activities and vision).  However,  high field MRI does
not have the  capability  to assess  metabolism.  The Company  cannot  presently
predict the future competitiveness of high field MRI.

Several  manufacturers  of SPECT  systems are now offering  multi-head  systems,
which  have been  modified  to  operate in  coincidence  mode,  similar to a PET
scanner.  These  systems  achieve  spatial  resolutions  similar  to that of PET
scanners, but their sensitivity and count rate are only a small fraction of that
achieved by true PET scanners,  making the images  "noisy" and more difficult to
interpret. The Company believes these systems are useful for only a very limited
class of clinical PET studies using only the FDG radiotracer. In addition, SPECT
coincidence systems offer limited,  if any,  corrections for patient attenuation
and scatter, which affects the accuracy of diagnosis.

Third-Party Reimbursement

POSICAM(TM)  systems are purchased or leased primarily by medical  institutions,
which  provide  health care services to their  patients.  Such  institutions  or
patients typically bill or seek  reimbursement  from various  third-party payors
such as Medicare,  Medicaid,  other governmental  programs and private insurance
carriers for the charges associated with the provided healthcare  services.  The
Company  believes that the market  success of PET imaging  depends  largely upon
obtaining  favorable coverage and reimbursement  policies from such programs and
carriers.

Medicare/Medicaid reimbursement.  Prior to March 1995, Medicare and Medicaid did
not provide reimbursement for certain PET imaging. Decisions as to such policies
for major new medical  procedures  are  typically  made by the U.S.  Health Care
Financing  Administration  ("HCFA"), based in part on recommendations made to it
by the Office of Health Technology Assessment ("OHTA").  Historically,  OHTA has
not  completed an  evaluation  of a procedure  unless all of the devices  and/or
drugs used in the procedure have received approval or clearance for marketing by
the  FDA.  Decisions  as to the  extent  of  Medicaid  coverage  for  particular
technologies  are made  separately by the various state Medicaid  programs,  but
such programs tend to follow Medicare national coverage  policies.  Medicare and
Medicaid  reimbursement for PET imaging have been, and the Company believes will
continue  to  be,  very  restrictive.  The  Company  believes  that  restrictive
reimbursement  policies have had a very significant adverse affect on widespread
use of PET  imaging  and  have,  therefore,  adversely  affected  the  Company's
business, financial condition, results of operations and cash flows.

In 1996,  HCFA approved  reimbursement  for one PET procedure in Cardiology.  In
1998,  four  additional  procedures in  Cardiology,  Oncology and Neurology were
approved.  In February 1999,  three  additional  procedure  reimbursements  were
approved in Oncology.  However, whether HCFA will continue to approve additional
reimbursable procedures, whether private insurers will follow HCFA's lead and/or
whether the procedure reimbursement level will be sufficient to simulate the PET
market are unknown at this time.

Private insurer  reimbursement.  Most insurance  carriers currently consider PET
imaging to be an  investigational  procedure and do not reimburse for procedures
involving  PET imaging.  The Company  believes  that certain  private  insurance
carriers, while they do not have broad PET reimbursement policies, reimburse for
PET scans on a case-by-case basis.

If third-party  coverage for PET procedures using the POSICAM(TM) system remains
unavailable,  it will likely  have a material  adverse  effect on the  Company's
business, financial condition, results of operations and cash flows.
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                                       7
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Manufacturing

The  Company  believes  that  it  currently  has the  ability  to  assemble  its
POSICAM(TM)  scanners  in a 2,700  square  foot  area of its 5,400  square  foot
corporate facility located in Houston, Texas. Scanners are generally produced by
assembling  parts  furnished  to the Company by outside  suppliers.  The Company
believes that it can assemble a typical  POSICAM(TM) system in two months,  with
an additional month required for testing before  delivery.  Due to the Company's
current financial  condition,  the Company  relocated its manufacturing  area in
April 1998 and the Company has not yet produced any  POSICAM(TM)  systems at its
present facility.

An essential component of the Company's POSICAM(TM) systems is bismuth germinate
oxide ("BGO")  crystals,  which detect the positron  emissions forming the basis
for a PET image,  and  photomultiplier  tubes,  which  convert the light  energy
emitted  by  such  crystals  into  electrical  impulses  for  use in  the  image
reconstruction   process.  BGO  crystals  are  specially  manufactured  and  are
available from a supplier, located in the United States, that is a subsidiary of
a Japanese  company,  and another supplier located in France.  While the Company
primarily  relies on a single  source for its BGO  crystals,  it has in the past
purchased  crystals  from the second  manufacturer  and  believes  that it could
resume such purchases at acceptable prices without significant delays.

The Company purchases photomultiplier tubes from a French supplier. In the event
that the  supply of French  photomultiplier  tubes were to be  interrupted,  the
Company  believes it has the ability to source similar product from an alternate
manufacturer  in the United States.  The Company  believes that multiple  vendor
sources exist in the United States for all other parts,  for which no individual
vendor  is  critical  to  production.  However,  due  to the  Company's  current
financial  condition,  many of its suppliers are requiring advanced payments for
materials.

Research and Development

The  Company's  POSICAM(TM)  systems  are  based  upon  proprietary   technology
initially  developed at the University of Texas Health Science Center  ("UTHSC")
in Houston, Texas, under a $24 million research program begun in 1979 and funded
by UTHSC  and The  Clayton  Foundation  for  Research  (Clayton  Foundation),  a
Houston-based,   non-profit   organization.   Further  product  development  and
commercialization of the system has been funded by the Company.

The Company's research and development  expenses for the year ended December 31,
1997 were  $1,305,000.  Deterioration of its financial  condition  prevented the
Company from  performing  research and  development  in 1998. In addition to the
Company's sponsored and funded research and development programs, the Company in
the past  has  supplemented  its  research  and  development  with a  technology
transfer  agreement with UTHSC and currently is  participating  in collaborative
research  efforts with selected  clinical and research  customers,  and research
grants  funded  through  the  federal  government's  Small  Business  Innovative
Research (SBIR) program.

Patent and Royalty Arrangements

The  Company  acquired  the  know-how  and patent  rights for  positron  imaging
("Licensed Technology") from the Clayton Foundation,  K. Lance Gould (formerly a
director  of the  Company)  and Nizar A.  Mullani  (formerly  a director  of the
Company). The Company is currently obligated to pay royalties of 3% of the gross
revenues  from  sales,  uses,  leases,  licensing  or  rentals  of the  Licensed
Technologies,  1% each to the Clayton Foundation, K. Lance Gould and to Nizar A.
Mullani.
- --------------------------------------------------------------------------------
                                       8
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The Company's  current 3% royalty is based on  agreements  with Nizar A. Mullani
and K. Lance Gould to reduce the royalty  payments due to them by the Company in
consideration  of payments to be made to them under  consulting  agreements  and
promissory notes. The consulting agreements provide that if the Company defaults
in its payment obligations  thereunder,  then Mr. Mullani and Dr. Gould would be
entitled to receive a regrant of the royalties that they previously released. On
April 12, 1998, the Company  received a demand letter from Mr. Mullani  alleging
default  under  his  consulting  agreement  and  demanding  the  regrant  of  an
additional 1% royalty  interest.  Although the Company has not received any such
demand from Dr.  Gould,  the Company  believes  that a payment  default may have
occurred under Dr. Gould's  consulting  agreement and that as a result  thereof,
Dr.  Gould  may be  entitled  to the  regrant  of an  additional  0.5%  royalty,
resulting in an increase of the Company's  royalty  obligations from 3% to 4.5%.
Increase in royalty obligations  resulting from Mr. Mullani's claim could have a
material  adverse  effect on the  Company's  future  financial  performance.  In
December  1998,  the Company  reached an agreement  in principle  with Dr. Gould
regarding payment of back royalties,  waiver of demand rights regarding defaults
under the consulting  contract and retaining the reduced  royalty  payment level
going forward.

Two of the  Company's  patents,  issued in January  1986 and  February  1987 and
expiring  in  January  2003  and  February  2004,  respectively,  relate  to the
staggered  crystal array design of its POSICAM  systems.  One additional  patent
issued in June 1987 and expiring in June 2004 relates to  technology,  which the
company,  by  obtaining  the patent,  has reserved the right to use. The Company
maintains  certain of its patents in Germany and has applied for certain patents
in Japan.

The Company seeks to protect its trade secrets and proprietary  know how through
confidentiality  agreements  with its  employees  and  consultants.  The Company
requires each employee and consultant to enter into a confidentiality  agreement
containing provisions prohibiting the disclosure of confidential  information to
anyone  outside the  Company,  and  requiring  disclosure  to the Company of any
ideas,  developments,  discoveries or investigations conceived during employment
or service as a  consultant  and the  assignment  to the  Company of patents and
proprietary rights to such matters related to the business and technology of the
Company.

Government Regulations

The Company's  POSICAM(TM) systems and  radiopharmaceuticals  used in connection
with them are subject to  regulation  by the FDA. The FDA regulates and approves
the clinical  testing,  manufacturing,  labeling,  distribution and promotion of
medical  devices  in the  United  States  prior to their  commercialization.  In
addition,  various foreign countries in which the Company's  products are or may
be marketed, impose certain regulatory requirements.

The Company's  POSICAM(TM)  systems are regulated as medical  devices by the FDA
and require  pre-market  clearance  by the FDA.  Pursuant to the Medical  Device
Amendments  of May  1976,  the FDA  classifies  medical  devices  in  commercial
distribution  as a class I, class II, or class III device.  This  classification
scheme is based on the controls  necessary to  reasonably  ensure the safety and
effectiveness  of the medical  devices.  Class I devices are those devices whose
safety and  effectiveness  can reasonably be ensured through  general  controls,
such as adequate  labeling,  pre-market  notification  and adherence to the Good
Manufacturing  Practice  (GMP)  regulations.  Class II devices are those devices
whose safety and  effectiveness  can  reasonably  be assured  through the use of
special  controls,  such as  performance  standards,  post market  surveillance,
patient  registries and FDA  guidelines.  Class III devices  require  pre-market
approval from the FDA and are  generally  devices which support or sustain human
life or present a potential risk of illness or injury.  The POSICAM(TM)  systems
are considered to be class II devices. However, as of December 31, 1998, the FDA
has  not  promulgated  a  performance  standard  for  PET  systems.   Therefore,
POSICAM(TM)  systems are not currently  subject to such  controls,  nor are they
subject to post market surveillance, patient registries and FDA guides.
- --------------------------------------------------------------------------------
                                       9
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Before it can be  commercially  marketed,  a class II device must be approved by
the FDA. If a medical device is "substantially equivalent" to a legally marketed
class II device,  the  manufacturer  or  distributor  may seek FDA  clearance by
filing what is known as a 510(k) pre-market notification which must be supported
by data and test results. If the FDA determines that the device is substantially
equivalent,  then it may be marketed in the United States. The FDA may, however,
require  additional  data or additional  test results,  or may determine  that a
device is "not substantially  equivalent."  Requests for additional data or test
results  or a "not  substantially  equivalent"  determination  could  delay  the
Company's market  introduction of new products and could have a material adverse
effect  on the  Company's  financial  results  and  operations.  The  FDA is not
required to respond to 510(k)  pre-market  notifications  within a specific time
period.  The FDA  recently  began  requiring a more  rigorous  demonstration  of
substantial  equivalence and in many cases the time periods required for product
approvals  has  increased.  If the FDA  determines  that a new  product  is "not
substantially   equivalent,"  then  the  manufacturer  must  undergo  a  lengthy
Pre-Marketing  Approval  process which  generally  involves  clinical trials and
submission of data to prove safety and effectiveness before approval is granted.

The Company's original POSICAM(TM) system received 510(k) clearance in September
1985. In November 1989, the Company was granted 510(k)  clearance for a modified
POSICAM(TM)  system,  and also received approval for a mobile van configuration.
In  1991,  the  Company  applied  for  and  received  510(k)  clearance  of  its
POSICAM(TM) HZ system, and in July 1993 the Company received 510(k) approval for
the POSICAM(TM) HZL.

The Company is also required to register as a medical device  manufacturer  with
the FDA. As such,  the Company may be inspected from time to time by the FDA for
compliance with the FDA's GMP regulations.  These  regulations  require that the
Company  manufacture  its products  and  maintain its  documents in a prescribed
manner with respect to manufacturing,  testing and control activities.  Further,
the Company is required to comply with  various FDA labeling  requirements.  The
Medical  Device   Reporting   regulation   required  that  the  Company  provide
information  to the FDA on  deaths  or  serious  injuries  alleged  to have been
associated  with the use of its devices,  as well as product  malfunctions  that
would likely cause or contribute to death or serious  injury if the  malfunction
were to recur. To date, no such deaths,  injuries or product  malfunctions  have
occurred. In addition,  the FDA prohibits an approved device from being marketed
for unapproved applications. To date the Company has not received any notices of
noncompliance from the FDA concerning GMP regulations.

During  February  1995,  the FDA  conducted a GMP  compliance  inspection at the
Company's  manufacturing  facility that resulted in the Company  receiving a FDA
warning letter.  Several issues were noted for corrective action in that letter,
and the Company  expeditiously  took action to address  the FDA's  concerns.  In
February 1996, the FDA began a follow-up  inspection of the Company's corrective
actions.  In  February  1996,  February  1997  and July  1998 the FDA  conducted
follow-up inspections of the Company's facilities.  As of December 31, 1998, the
Company has not been informed of the results of such follow-up  inspections.  If
the FDA finds that the Company has not corrected the  deficiencies  noted in the
warning  letter it could,  among other  things,  issue another  warning  letter,
prohibit new product  introductions,  institute a product recall or prohibit the
Company from shipping products until all deficiencies are corrected to the FDA's
satisfaction.  The Company is cooperating  fully and intends to continue to work
with the FDA in all compliance matters.

The Company is required under Texas law to register with the Texas Department of
Health  with  respect  to  the  Company's  maintaining  radiopharmaceuticals  on
premises  for testing  and for  research  and  development  purposes.  The Texas
Department  of Health has the  authority  to inspect the  Company's  records and
facilities to ensure compliance with these  regulations.  The Company has in the
past  received  notice  of minor  violations,  which  have  been  satisfactorily
resolved with no punitive action.  The Company  believes that adequate  measures
have been taken to prevent their recurrence.

Sales of medical  devices outside of the United States may be subject to foreign
regulatory  requirements  that vary  widely from  country to  country.  The time
required  to obtain  approval  by a  foreign  country  may be  longer  than that
required for FDA approval and the requirements may differ.
- --------------------------------------------------------------------------------
                                       10
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
PET imaging centers must comply with regulations promulgated, in most states, by
an agency of the state  government,  under  authority  delegated  by the Nuclear
Regulatory  Commission governing the possession and use of  radiopharmaceuticals
for medical  diagnostic  procedure.  In order to secure approval,  a PET imaging
center must submit an acceptable site for its scanner, employ adequate radiation
safety and quality procedures, and provide a nuclear physician who meets certain
training and experience standards.  Cyclotrons are considered industrial devices
and are therefore not covered by any FDA  regulations.  Currently,  there are no
state or federal  regulations  concerning the sale,  marketing,  or ownership of
cyclotrons.  However,  operational  licenses  are  required  by state  radiation
regulatory divisions. The licensing and/or registration of cyclotrons by a state
is typically handled by the state's  Department of Health or Bureau of Radiation
Control.

Many states have  "certificate of need"  regulations that require a purchaser or
user of expensive  diagnostic equipment such as PET systems to obtain regulatory
approval before it may purchase and install such equipment. A primary purpose of
these  regulations  is to  contain  health  costs by  restricting  the number of
similar  units in a  particular  locality.  The Company has yet to  experience a
situation  where a  customer  was  unable  to  obtain  such  approval.  However,
restrictions  of this mature may  increase in the future  through the passage of
legislation  and the adoption of regulatory  changes as a part of overall health
care reform.

Backlog

The Company had no backlog for its POSICAM(TM) systems at December 31, 1998.

Product Liability and Insurance

Medical  device  companies are subject to a risk of product  liability and other
liability claims in the event that the use of their products results in personal
injury claims.  The Company has not experienced any product  liability claims to
date. The Company maintains  liability insurance with coverage of $1 million per
occurrence and an annual aggregate maximum of $2 million.

Employees

As of December 31, 1998, the Company  employed ten (10) full-time  persons:  two
(2) are  employed in the  Company's  engineering  department,  five (5) in field
service,   two  (2)  in  manufacturing,   and  one  (1)  in  the  executive  and
administration department.

On January 1, 1996, the Company entered into an employment agreement with Werner
J. Haas,  Ph.D.,  pursuant to which Dr. Haas  agreed to serve as  President  and
Chief Executive  Officer of the Company for a term of two years.  The employment
agreement provided for the payment of an annual base salary of $200,000, bonuses
in an  amount to be  determined  at the  discretion  of the  Company's  Board of
Directors, and participation in any employee benefit plan adopted by the Company
for its employees.

On February  18, 1997,  Dr. Haas  informed the Board of Directors of the Company
that he considered his contract to have been  terminated by the Company  without
cause as a result of the Company's  failure to pay the February 15, 1997 payroll
to any of its management  level employees and  specifically to him. Dr. Haas has
demanded  that the  Company  pay to him all past due  salary as well as the nine
months  severance pay specified in his  employment  agreement if his contract is
determined  to have  been  terminated  without  cause.  Additionally,  Dr.  Haas
resigned  his  position as a member of the  Company's  Board of  Directors.  The
Company has  indicated to Dr. Haas that it believes no amounts are due him under
his  employment  agreement.  As of December 31,  1998,  the Company is unable to
predict the outcome of the disagreement between Dr. Haas and the Company.

Gary B. Wood, Ph.D., currently a member of the Company's Board of Directors, had
assumed the duties of President and Chief Executive Officer upon the resignation
of Werner  Haas.  Effective  January 22, 1999,  S. Lewis Meyer,  CEO of Imatron,
assumed the duties of  Chairman of the  Company's  Board of  Directors.  Gary H.
Brooks,  CFO of Imatron,  assumed the  responsibilities  of  President,  CFO and
Secretary of the Company.
- --------------------------------------------------------------------------------
                                       11
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Risks Associated with Business Activities

History of  Losses.  To date the  Company  has been  unable to sell  POSICAM(TM)
systems at quantities sufficient to be profitable. Consequently, the Company has
sustained  substantial  losses. Net losses for the years ended December 31, 1998
and 1997 were $724,000 and $4,455,000,  respectively.  At December 31, 1998, the
Company had an accumulated deficit of approximately $49,684,000. There can be no
assurances that the Company will ever achieve the level of revenues needed to be
profitable  in the  future and if  profitability  is  achieved,  that it will be
sustained.  Due to the sizable  sales price of each  POSICAM(TM)  system and the
limited  number of systems  that are sold or placed in  service  in each  fiscal
period,  the Company's  revenues  have  fluctuated,  and may likely  continue to
fluctuate significantly from quarter to quarter and from year to year.

Recruiting  and  Retention  of Qualified  Personnel.  The  Company's  success is
dependent to a significant degree upon the efforts of its executive officers and
key  employees.  The loss or  unavailability  of the  services of any of its key
personnel  could have a material  adverse  effect on the Company.  The Company's
success is also  dependent  upon its  ability to  attract  and retain  qualified
personnel in all areas of its business,  particularly  management,  research and
marketing.  Given the Company's  current  financial  situation,  there can be no
assurance  that  the  Company  will be able to  continue  to hire  and  retain a
sufficient number of qualified personnel. If the Company is unable to retain and
attract such qualified personnel, its business, operating results and cash flows
could be adversely affected.

Working Capital Deficiency.  At December 31, 1998, the Company had cash and cash
equivalents  in the amount of $8,000  compared to $160,000 at December 31, 1997.
Throughout  much of 1998,  the Company  has been  unable to meet  certain of its
obligations  as they came due. As a result of the Company's  liquidity  problem,
the payment of salaries and other benefits to certain management level employees
(totaling  approximately  $700,000)  were  deferred  at  December  31,  1997 and
remained unpaid at December 31, 1998. Additionally, the Company is in arrears to
many of its vendors and suppliers.  As of December 31, 1998, such amount owed to
vendors and suppliers totaled approximately $1,253,000.

The Company will also require additional debt or equity financing to sustain its
operations  beyond  December  1998.  The Company  intends to rely upon Imatron's
undertaking  (to use its best efforts to arrange  additional  third party equity
financing  for the  Company) in order to fulfill its  current  financing  needs.
There are no assurances that Imatron will be successful in arranging  additional
third party  equity  financing  for the Company or, if such equity  financing is
obtained,  that the terms of such  equity  financing  will be  favorable  to the
Company or its shareholders.

As a result of the Company's liquidity problems,  its auditors,  Ham, Langston &
Brezina,  L.L.P.,  have  added an  emphasis  paragraph  to their  opinion on the
Company's  financial  statements  indicating that substantial doubt exists about
the Company's ability to continue as a going concern.

The Company had a special  meeting of its  shareholders  on December 18, 1998 at
which time it approved the Imatron Transaction and the increase in the number of
authorized common shares.

Imatron  Transaction.  In May 1998,  the Company  entered into an agreement (the
"Imatron  Transaction")  with Imatron Inc. of South San  Francisco  ("Imatron"),
whereby in January  1999  Imatron  acquired  9,000,000  shares of the  Company's
Common Stock representing a majority ownership of the Company. Positron received
a nominal  cash amount from  Imatron in payment for the shares.  In  conjunction
with the  execution of  definitive  agreements,  Imatron  began  making  working
capital  advances  available to Positron up to $600,000 in order to enable it to
meet a portion of its current obligations.  As of December 31, 1998, the Company
had borrowed  $600,000.  The loan bears interest at 1/2% over the prime rate, is
due March 1, 2000 (with interest being payable  monthly),  and is secured by all
of Positron's  assets.  Under the planned  arrangement,  Positron will remain an
independent public company.
- --------------------------------------------------------------------------------
                                       12
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Imatron, in addition to providing limited working capital financing,  agreed and
has been  working to support  Positron's  marketing  program  particularly  with
regard to Imatron's  affiliate,  Imatron Japan,  Inc. by agreeing to take, after
the share issuance  closing date (January 22, 1999),  all reasonable  efforts to
cause the placement of 10 POSICAM(TM) systems over the next three years. In late
1997,  Positron  shipped  a  POSICAM(TM)  system to  Imatron  Japan as the first
delivery  under a  three-year  distribution  agreement  entered  into last year.
Imatron  Japan,  an  affiliate  of  Imatron,  Inc.  is a major  distributor  for
Imatron's  Ultrafast CT and several other high tech companies.  Imatron has a 24
percent  minority  interest  in Imatron  Japan.  Imatron has also agreed to help
facilitate  the  recapitalization  of Positron to support its re-entry  into the
medical  imaging  market by using  its best  efforts  after  the share  issuance
closing date to arrange for additional third-party equity financing for Positron
over  an  eighteen-month  period  in  an  aggregate  amount  of  not  less  than
$8,000,000.  There  can be no  assurances,  however,  that any such  sales  will
actually be consummated or that Imatron will be able to successfully  assist the
Company in raising additional capital.

As  part  of the  consummation  of the  transaction  in  January  1999,  all the
Company's directors and officers of Positron,  except for Dr. Wood, resigned and
S.  Lewis  Meyer and Gary H.  Brooks  were  nominated  by  Imatron to fill those
vacancies. Positron shareholders approved an amendment to Positron's Articles of
Incorporation to increase its authorized common stock to 100,000,000 shares.

Also,  in  connection  with the above  transactions,  Positron,  Imatron and two
lenders to Positron,  Uro-Tech,  Ltd. and ProFutures  Bridge Capital Fund,  L.P.
("ProFutures"),  entered into certain  agreements  whereby (a) ProFutures waived
all past  defaults and extended the maturity of its loan to December 5, 1998, in
return for a $50,000  payment,  the  issuance of warrants to purchase  1,150,000
shares of Positron  common stock at $0.25 per share (in addition to the issuance
of previously bargained for warrants to purchase an additional 100,000 shares of
Positron  common  stock at $0.25 per share),  and  minimum  loan  repayments  of
$50,000 for each of the months of April,  May, June and July,  1998 and $100,000
for each of the months of August  and  September  1998,  (b)  Imatron  agreed to
subordinate  its  loan  to  ProFutures'  loan,  (c)  Uro-Tech,  Ltd.  agreed  to
subordinate  its loan (with a current  balance of  approximately  $767,000  plus
accrued  interest  payable  of  approximately  $260,000  at June  30,  1998)  to
Imatron's loan, and (d) ProFutures and Imatron agreed that all amounts above the
first $1,000,000 of any third-party  equity financing  obtained by Imatron would
be applied equally to reduce Positron's debt to both ProFutures and Imatron. The
Company  retired  in full the  Profutures  loan in  December  1998 in part  with
proceeds  received  from  the  sale  of the  machine  being  leased  to  Buffalo
Cardiology and Pulmonary Associates.

If Imatron is  unsuccessful  in its efforts to raise  capital  for the  Company,
management  believes  that the  Company  may be  unable to  continue  as a going
concern and that the Company's assets may be seized by its secured creditors.

NASDAQ SmallCap Market  Eligibility  Failure to Meet  Maintenance  Requirements:
Delisting of Securities from the NASDAQ System.  The Company's  Common Stock was
previously  listed on the NASDAQ SmallCap Market.  The Board of Governors of the
National  Association  of  Securities  Dealers,  Inc.  ("NASD") has  established
certain standards for the continued listing of a security on the NASDAQ SmallCap
Market. The standards required for the Company to maintain such listing include,
among other things,  that the Company have total capital and surplus of at least
$2,000,000. As of December 31, 1998, the Company had a total capital and surplus
deficit of  $5,639,000.  The Company  failed to maintain its NASDAQ stock market
listing and will not meet the  substantially  more stringent  requirements to be
re-listed  until such time as it is able to raise  capital by sale of additional
equity securities or increase sales of its POSICAM(TM) systems.  There can be no
assurances that the Company will ever meet the capital and surplus  requirements
needed to be re-listed under the NASDAQ SmallCap Market System.

Trading  of the  Company's  Common  Stock is  currently  conducted  in the "pink
sheets" or the NASD's Electronic Bulletin Board.  Trading in the Common Stock is
covered  by  rules  promulgated  under  the  Exchange  Act  for  non-NASDAQ  and
non-exchange listed securities.  Under such rules,  broker/dealers who recommend
such  securities to persons  other than  established  customers  and  accredited
investors  must  make  a  special  written  suitability  determination  for  the
purchaser and receive the purchaser's  written  agreement to a transaction prior
to sale.  Securities are exempt from these rules if the market price is at least
$5.00 per share.  As of December 31, 1998,  the closing  price of the  Company's
Common Stock was $0.13.
- --------------------------------------------------------------------------------
                                       13
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The SEC has adopted  regulations  that generally  define a penny stock to be any
equity security that has a market price of less than $5.00 per share, subject to
certain  exceptions.  The  Company's  common stock is currently  subject to such
penny  stock  rules.  The  regulations  require  the  delivery,   prior  to  any
transaction  involving a penny stock,  of a disclosure  schedule  explaining the
penny stock market and the risks  associated  therewith.  As a penny stock,  the
market liquidity for the Company's Common Stock is severely  affected due to the
limitations  placed on  broker/dealers  that sell the Common Stock in the public
market.

Substantial  Competition and Effects of  Technological  Change.  The industry in
which the Company is engaged is subject to rapid and  significant  technological
change.  There can be no assurance that  POSICAM(TM)  systems can be upgraded to
meet future  innovations in the PET industry or that new  technologies  will not
emerge, or existing  technologies  will not be improved,  which would render the
Company's products obsolete or non-competitive. The Company faces competition in
the United States PET market primarily from General Electric Company and Siemens
Medical  Systems,  Inc., two major commercial  manufacturers,  each of which has
significantly  greater  financial and technical  resources  and  production  and
marketing capabilities than the Company. In addition,  there can be no assurance
that other established medical concerns,  any of which would likely have greater
resources  than the Company,  will not enter the market.  The Company also faces
competition from other imaging  technologies  which are more firmly  established
and have a greater market acceptance,  including single-photon emission computed
tomography  (SPECT).  There can be no assurance that the Company will be able to
compete successfully against any of its competitors.

No  Assurance  of  Market  Acceptance.   The  POSICAM(TM)  systems  involve  new
technology  that  competes  with more  established  diagnostic  techniques.  The
purchase  and  installation  of a PET  system  involves  a  significant  capital
expenditure on the part of the purchaser.  A potential purchaser of a PET system
must  have an  available  patient  base  that is large  enough  to  provide  the
utilization  rate needed to justify  such capital  expenditure.  There can be no
assurance  that PET  technology  or the  Company's  POSICAM(TM)  systems will be
accepted  by the  target  markets  or that the  Company's  sales of  POSICAM(TM)
systems will increase or that the Company will ever be profitable.

Patents and Proprietary  Technology.  The Company holds certain patent and trade
secret rights relating to various  aspects of its PET  technology,  which are of
material  importance  to the Company and its future  prospects.  There can be no
assurance,   however,   that  the  Company's  patents  will  provide  meaningful
protection from competitors. Even if a competitor's products were to infringe on
patents held by the  Company,  it would be costly for the Company to enforce its
rights,  and the enforcement of its rights would divert funds and resources from
the  Company's  operations.  Furthermore,  there  can be no  assurance  that the
Company's products will not infringe on any patents of others.

The  Company   requires  each  employee  and/or   consultant  to  enter  into  a
confidentiality  agreement,  but there can be no assurance that these agreements
will provide meaningful  protection or adequate remedies for the Company's trade
secrets or proprietary  know-how in the event of unauthorized  use or disclosure
of such information, or that others will not independently develop substantially
equivalent  proprietary  information  and techniques or otherwise gain access to
the Company's trade secrets and proprietary know-how.

Government    Regulation.    The   Company's   POSICAM(TM)   systems   and   the
radiopharmaceuticals  used in connection  with them are subject to regulation by
the FDA. The FDA regulates and must approve the clinical testing, manufacturing,
labeling,  distribution,  and promotion of medical devices in the United States.
There can be no assurance  that any additional  product or enhancement  that the
Company may develop will be approved by the FDA. Delays in receiving  regulatory
approval  could have a material  adverse  effect on the Company's  business.  In
addition,  various foreign countries in which the Company's  products are or may
be marketed impose additional  regulatory  requirements.  Further, the Company's
operations  and the  operations of PET systems are subject to  regulation  under
federal and state health safety laws,  and  purchasers  and users of PET systems
are subject to federal and state laws and regulations  regarding the purchase of
medical equipment such as PET systems. All laws and regulations, including those
specifically  applicable  to the  Company,  are  subject to change.  The Company
cannot  predict what effect  changes in laws and  regulations  might have on its
business.  Failure to comply with  applicable  laws and regulatory  requirements
could  have  material  adverse  effect  on  the  Company's  business,  financial
conditions, results of operations and cash flows.
- --------------------------------------------------------------------------------
                                       14
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Certain Financing  Arrangements.  In order to sell its POSICAM(TM)  systems, the
Company has from time to time found it necessary to participate in ventures with
certain customers or otherwise assist customers in their financing arrangements.
The venture  arrangements  have  involved  lower cash  prices for the  Company's
systems in exchange for interests in the ventures,  thus exposing the Company to
the  attendant  business  risks of the  ventures.  The  Company  has, in certain
instances,  sold its systems to financial  intermediaries,  which have, in turn,
leased the  system.  Such  transactions  may not give rise to the same  economic
benefit to the Company as would have occurred had the Company made a direct cash
sale at its normal market prices on normal sale terms. There can be no assurance
that the Company  will not find it necessary to enter  similar  transactions  to
effect  future sales.  The nature and extent of the  Company's  interest in such
ventures or the existence of  remarketing or similar  obligations  could require
the Company to account for such  transactions as financing  arrangements  rather
than "sales" for financial  reporting  purposes.  Such treatment  could have the
effect of  delaying  the  recognition  of revenue on such  transactions  and may
increase the volatility of the Company's financial results.

Product Liability and Insurance. The use of the Company's products entails risks
of product  liability.  There can be no assurance that product  liability claims
will not be successfully asserted against the Company.

The Company maintains  liability  insurance coverage in the amount of $1 million
per occurrence and an annual aggregate maximum of $2 million. However, there can
be no assurance  that the Company will be able to maintain such insurance in the
future or, if  maintained,  that such  insurance will be sufficient in amount to
cover any successful  product  liability claims.  Any uninsured  liability could
have a material adverse effect on the Company.

No Dividends.  The Company has never paid cash dividends on its Common Stock and
does not intend to pay cash  dividends  on its Common  Stock in the  foreseeable
future.  The Series A Preferred Stock and Series B Preferred Stock Statements of
Designation  prohibit the payment of Common Stock  dividends  until all required
dividends have been paid on each series of preferred  stock.  As of December 31,
1998,  approximately  $561,000 of preferred  stock  dividends are undeclared and
unpaid by the Company.

                         Item 2. Description of Property

The Company  occupies a 5,400  square foot  facility  in  Houston,  Texas.  That
facility  includes  area for system  assembly and testing,  a computer  room for
hardware and software  product design,  and office space. The facility is leased
month  to  month  at a rate of  approximately  $2,700  per  month.  The  Company
estimates the space to be sufficient for 1999.

                            Item 3. Legal Proceedings

The City of Houston,  Katy Independent  School District (KISD) and Harris County
together brought a consolidated  action against the Company for delinquent taxes
and other assessments  relating to tax years 1995 through 1997. In February 1998
judgement  was  entered  against  the  Company  in the  amount of  approximately
$240,000.  In November 1998 the Company  negotiated a payment schedule with each
of the City,  KISD and the  County in order to retire the  judgement  as to each
entity and also for payments of assessments relating to the 1998 tax year, which
were also delinquent but which no action has been brought.  The Company has been
maintaining  the payment  schedule  relating both to the  judgement  relating to
prior tax years and to the 1998 tax year.
- --------------------------------------------------------------------------------
                                       15
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The Company  acquired the know-how and patent  rights for positron  imaging from
the Clayton Foundation,  K. Lance Gould (formerly a director of the Company) and
Nizar A.  Mullani  (formerly  a director  of the  Company).  Pursuant to royalty
agreements,  the  Company  was  obligated  to pay  royalties  4.5% of the  gross
revenues  from  sales,  uses,  leases,  licensing  or  rentals  of the  relevant
technology, in the aggregate to the Foundation, and to Messrs. Gould and Nizani.
In 1993 each of the individual royalty holders agreed to receive reduced royalty
payments in connection with receiving certain loans and entering into consulting
agreements with the Company,  reducing the total aggregate  royalty payments due
to 3%. The  consulting  agreements  provide that if the Company  defaults in its
payment obligations under the respective consulting agreements,  Mr. Mullani and
Dr.  Gould  respectively  would be entitled to  reinstatement  of their  earlier
higher  royalties.  On April 12, 1998 the Company  received a demand letter from
Mr. Mullani alleging  defaults under his consulting  agreement and demanding the
reinstatement  of an additional 1% royalty  interest.  While the Company did not
receive a formal  demand from Dr.  Gould,  the Company  believes  that a payment
default may have  occurred  under Dr.  Gould's  consulting  contract as well. In
December  1998 the Company  reached an  agreement  in  principle  with Dr. Gould
regarding payment of back royalties,  waiver of demand rights regarding defaults
under the consulting  contract,  and retaining the reduced royalty payment level
going forward, as well as several other pending issues between parties. Increase
in royalty obligations  resulting from Mr. Mullani's claim could have a material
adverse effect on the Company's future financial performance.

           Item 4. Submission of Matters to a Vote of Security Holders

The Company held its annual  meeting of  shareholders  on December 18, 1998,  at
which more than two-thirds of the  outstanding  voting power of the Common Stock
and Series A  Preferrred  Stock  voting  together  as one class  considered  and
approved an amendment of the Company's Articles of Incorporation to increase the
authorized  Common  Stock  from  15,000,000  shares to  100,000,000  shares.  In
addition,  more than a plurality of the voting power of the Common Stock and the
Series A Preferred voting together and represented in person or by proxy elected
Dr. Gary Wood as the Company's  sole  director,  and more than a majority of the
voting power ratified the  designation  of Ham,  Langston & Brezina,  L.L.P.  as
independent auditors for the fiscal year ended December 31, 1997.

                                     PART II

        Item 5. Market for Common Equity and Related Stockholder Matters

In December 1993, the Company  completed an initial public offering of 1,750,000
shares of Common  Stock  and  1,946,775  redeemable  warrants  (the  "Redeemable
Warrants") to purchase  Common Stock (the "Initial Public  Offering").  Prior to
the Initial  Public  Offering  there was no public market for  Company's  Common
Stock. The Company's  Common Stock and Redeemable  Warrants are currently traded
in the over-the-counter securities market, and quoted on the NASDAQ OTC Bulletin
Board under the symbols  POSC,  respectively.  The  Company's  Common  Stock and
Redeemable  Warrants were  previously  traded on the NASDAQ  SmallCap Market but
were  delisted in 1997  because  the  Company was unable to comply with  various
financial and  compliance  requirements  for  continued  inclusion on the NASDAQ
SmallCap  Market.  See "Item 1.  Description of Business - Risks Associated with
Business Activities."

The  following  range of the high and low reported  closing sales prices for the
Company's Common Stock for each quarter in 1998 and 1997, all as reported on the
NASDAQ OTC Bulletin Board or the NASDAQ SmallCap Market.
            
                        1998                  1997                  1996
                   ---------------       ---------------       ---------------
                    High      Low         High      Low         High      Low 
                   ------   ------       ------   ------       ------   ------
 First Quarter     $0.625   $0.266       $3.375   $1.250       $3.563   $1.375
 Second Quarter    $0.609   $0.188       $1.938   $0.375       $4.188   $3.250
 Third Quarter     $0.453   $0.213       $1.438   $0.422       $5.500   $2.000
 Fourth Quarter    $0.500   $0.040       $0.953   $0.172       $3.250   $1.500

There  were  approximately  212  shareholders  of record  of Common  Stock as of
December 31, 1998, including broker-dealers holding shares beneficially owned by
their customers.
- --------------------------------------------------------------------------------
                                       16
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The Company has never paid cash dividends on its Common Stock.  The Company does
not intend to pay cash dividends on its Common Stock in the foreseeable  future.
The  Series A  Preferred  Stock  and  Series B  Preferred  Stock  Statements  of
Designation  prohibit the payment of Common Stock  dividends  until all required
dividends have been paid on each series of preferred  stock.  As of December 31,
1998,  approximately  $561,000 of preferred  stock  dividends are undeclared and
unpaid by the Company.

        Item 6. Management's Discussion and Analysis or Plan of Operation

General

The  Company  was  incorporated  in  December  1983  and  commenced   commercial
operations  in 1986.  Since  that  time,  the  Company  has  generated  revenues
primarily from the sale and service contract revenues derived from the Company's
POSICAM(TM)  system,  15 of which are currently in operation in certain  medical
facilities  in the United  States.  The  Company has never been able to sell its
POSICAM(TM) systems in sufficient  quantities to achieve  profitability.  Should
the Imatron  Transaction,  discussed below, be unsuccessful the Company does not
have  sufficient  capital to repay secured  creditors as obligations  mature and
will, in all likelihood, be unable to continue in operations.

Imatron  Transaction.  In  May  1998,  the  Company  entered  into  the  Imatron
Transaction  with  Imatron,  pursuant  to which on  January  22,  1999,  Imatron
acquired a majority ownership of the Company.  In conjunction with the execution
of  definitive  agreements,   Imatron  began  making  working  capital  advances
available  to Positron up to $500,000 in order to enable it to meet a portion of
its current  obligations.  As of December  31,  1998,  the Company had  borrowed
$600,000.  The loan agreement has been amended by oral agreement to increase the
working capital  advances  available to the Company under the Agreement up to an
additional $100,000. The loan bears interest at 1/2% over the prime rate, is due
March 1, 2000 (with  interest being payable  monthly),  and is secured by all of
Positron's assets.

Pursuant to the agreement,  Imatron  acquired a 9,000,000 shares of Common Stock
on January 22, 1999, representing a majority ownership of the outstanding common
stock of the Company on a fully-diluted  and  as-if-converted  basis,  excluding
out-of-the-money warrants and options determined at that time. Positron received
a nominal cash  acquisition  price from Imatron in payment for the shares plus a
series of affirmative commitments.

Imatron,  in addition to providing limited working capital financing,  agreed to
support  Positron's  marketing  program  particularly  with regard to  Imatron's
affiliate,  Imatron Japan,  Inc. by agreeing to take,  after the share purchase,
all reasonable efforts to cause the placement of 10 POSICAM(TM) systems over the
next three years.  Positron  recently  shipped a  POSICAM(TM)  system to Imatron
Japan as the first delivery under a three-year  distribution  agreement  entered
into last  year.  Imatron  Japan,  an  affiliate  of  Imatron,  Inc.  is a major
distributor  for  Imatron's  Ultrafast CT and the products of several other high
tech  companies.  Imatron has a 24 percent  minority  interest in Imatron Japan.
Imatron  also  agreed to help  facilitate  the  recapitalization  of Positron to
support its re-entry into the medical  imaging  market by using its best efforts
to arrange for  additional  third-party  equity  financing  for Positron over an
eighteen-month period in an aggregate amount of not less than $8,000,000.  There
can be no assurances,  however, that any such sales will actually be consummated
or that  Imatron  will be able to  successfully  assist  the  Company in raising
additional  capital.  Consummation  of the  issuance  of shares to  Imatron  was
conditioned  upon,  among other  things (a) the  resignation  of each officer of
Positron,  (b) the resignation of at least three of the four Positron  directors
and the  appointment  of  Imatron's  nominees  to fill such  vacancies,  and (c)
Positron  shareholder  approval  of  an  amendment  to  Positron's  Articles  of
Incorporation to increase its authorized  common stock to 100,000,000  shares of
common stock.  All of those  conditions  were met, and the shares were issued on
January 22, 1999.
- --------------------------------------------------------------------------------
                                       17
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
In  connection  with the above  transactions,  Positron,  Imatron and two of the
lenders to  Positron,  Uro-Tech,  Ltd.  and  ProFutures,  entered  into  certain
agreements  whereby (a)  ProFutures  waived all past  defaults  and extended the
maturity  of its loan  (with a current  balance  of  approximately  $570,000  at
September  30, 1998) to December 5, 1998, in return for a $50,000  payment,  the
issuance of warrants to purchase  1,150,000  shares of Positron  common stock at
$0.25 per  share (in  addition  to the  issuance  of  previously  bargained  for
warrants to purchase an additional  100,000  shares of Positron  common stock at
$0.25 per share),  and minimum loan repayments of $50,000 for each of the months
of April,  May,  June and July 1998,  $100,000  for the month of August 1998 and
$50,000 for each of the months of  September,  October and  November  1998,  (b)
Imatron agreed to subordinate its loan to ProFutures'  loan, (c) Uro-Tech,  Ltd.
agreed to subordinate its loan (with a current balance of approximately $767,000
plus accrued interest  payable of approximately  $286,000 at September 30, 1998)
to Imatron's  loan, and (d) ProFutures and Imatron agreed that all amounts above
the first  $1,000,000 of any third-party  equity  financing  obtained by Imatron
would be  applied  equally  to reduce  Positron's  debt to both  ProFutures  and
Imatron. Consistent with the amendment to the Imatron Agreement, the Company and
ProFutures  amended  their  agreements  to provide  further  waivers of any past
defaults and further extended the maturity of the ProFutures Loan to December 5,
1998 and minimum loan repayments of $50,000 for each of the months of September,
October and November 1998. Imatron agreed to continue to subordinate its loan to
the  ProFutures  Loan,  and Uro-Tech,  Ltd.  agreed to  subordinate  its loan to
Imatron's loan. The ProFutures loan was fully paid and retired in December 1998,
in part from  proceeds  received  from the sale of the  system  being  leased by
Buffalo Cardiology and Pulmonary Associates.

If Imatron is  unsuccessful  in its efforts to raise  capital  for the  Company,
management  believes  that the  Company  may be  unable to  continue  as a going
concern and that the Company's assets may be seized by its secured creditors.

Results of Operations

During the year ended  December 31, 1998,  the Company  continued to  experience
deterioration  in its  financial  condition;  however,  the  Company's  net loss
decreased to $724,000 in 1998 from  $4,455,000 in 1997. The decrease in net loss
is primarily the result of significant  staff  reductions and efforts to curtail
costs. Further analysis follows:

Revenues:  System sales  decreased to $0 in 1998 from  $1,129,000  in 1997.  The
Company sold no systems in 1998 and only one POSICAM(TM) system in 1997. Fee per
scan revenues decreased to $455,000 in 1998 from $602,000 in 1997 as a result of
the sale of the  previously  leased  system to Buffalo  Cardiology  &  Pulmonary
Associates. Service and component revenue decreased by $242,000 to $1,553,000 in
1998 as compared to  $1,795,000  in 1997,  due  primarily to a conversion of one
system from full service contract to "time and material contract".

Cost of Sales and  Services:  Cost of system sales  decreased to $0 in 1998 from
$698,000 in 1997 due to the fact that no POSICAM(TM)  systems were sold in 1998.
Costs of fee per scan decreased to $118,000 in 1998 from $156,000 in 1997 due to
lower maintenance  costs on the Company's only fee per scan system.  The primary
cost  associated  with  fee per scan is  depreciation  expense,  which  remained
constant.  Service, warranty and component cost decreased $63,000 to $402,000 in
1998 from  $465,000 in 1997 due primarily to the  corresponding  drop in service
revenues.   The  Company   recognized  a  $1,224,000   provision  for  inventory
obsolescence   during  the  fourth  quarter  of  1997  based  upon  management's
assessment that  improvements  would need to be made to the Company's  POSICAMTM
systems  in  order  to meet  current  technological  requirements  by  potential
customers.

Operating  Expenses:  Research and development  expenses decreased to $0 in 1998
from  $1,305,000 in 1997 due to diversion of R&D staff time to customer  service
support.  The company continued to reduce personnel levels significantly in 1998
as  liquidity  problems  squeezed  Company  resources.   Selling,   general  and
administrative  expenses  declined to $1,700,000 in 1998 from $3,609,000 in 1997
also due to staff reductions.
- --------------------------------------------------------------------------------
                                       18
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Other Expenses:  Interest expense increased to $525,000 in 1998 from $334,000 in
1997 due primarily to interest  expense  associated with the Company's loan from
ProFutures (the "ProFutures  Loan"). The ProFutures Loan was initially funded in
November 1996 and had a balance in excess of $1,000,000 throughout much of 1997.
The interest rate on the  ProFutures  Loan increased from 12% to 18% during 1997
and that increase in interest  rate  combined  with a higher  average debt level
resulted in a significant  increase in interest expense.  The Company retired in
full the  ProFutures  loan in December 1998 in part with proceeds  received from
the sale of the  machine  being  leased  to  Buffalo  Cardiology  and  Pulmonary
Associates (see "Imatron Transaction" section above).

Net Operating Loss Carry Forwards

The Company has accumulated a significant net operating loss carry forward which
may be used to reduce  taxable  income and related income taxes in future years.
On the other  hand,  since the  closing of the  Company's  1993  initial  public
offering,  the sale in February,  March and May of 1996 of  3,075,318  shares of
Series A  Convertible  Preferred  Stock  and the  sale of  9,000,000  shares  to
Imatron, each resulted in more than a 50% change in the ownership percentages of
shareholders.  The  provisions  of  Section  382 of the  Internal  Revenue  Code
severely limit the annual  utilization of the net operating loss carry forwards.
In addition,  the  utilization  of the losses to reduce  future  income taxes is
dependent  upon  the  generation  of  sufficient  taxable  income  prior  to the
expiration of the net operating  loss carry  forwards.  The carry  forwards will
begin to expire in the year 1999.

Liquidity and Capital Reserves

Since its inception the Company has been unable to sell  POSICAM(TM)  systems at
quantities sufficient to be profitable.  Consequently, the Company has sustained
substantial  losses.  Net losses for the years ended  December 31, 1998 and 1997
were $724,000 and  $4,455,000,  respectively.  At December 31, 1998, the Company
had an  accumulated  deficit of  approximately  $49,684,000.  Due to the sizable
prices of the Company's systems and the limited number of systems sold or placed
in service each year, the Company's revenues have fluctuated  significantly year
to year.

At December 31, 1998, the Company had cash and cash equivalents in the amount of
$8,000  compared to $160,000 at December 31, 1997.  Throughout  much of 1997 and
1998,  the Company has been unable to meet  certain of its  obligations  as they
came  due.  As a result of the  Company's  liquidity  problem,  the  payment  of
salaries and other  benefits to certain  management  level  employees  (totaling
approximately  $700,000) were deferred at December 31, 1997 and remained  unpaid
at  December  31,1998.  Additionally,  the  Company is in arrears to many of its
vendors and suppliers.  As of December 31, 1998, such amount owed to vendors and
suppliers totaled approximately $1,327,000. This amount excludes the nine months
severance demand made by Dr. Haas. See comments in section Employees above.

Even though the Company  successfully  retired Profutures Loan in December 1998,
on an  on-going  basis  the  Company  will  require  additional  debt or  equity
financing  to sustain  its  operations.  The  Company  is  relying on  Imatron's
undertaking  to use its best  efforts to arrange  additional  third party equity
financing for the Company to fulfill its current  financing needs.  There are no
assurances that Imatron will be successful in arranging  additional  third party
equity financing for the Company or, if such equity financing is obtained,  that
the terms of such  equity  financing  will be  favorable  to the  Company or its
shareholders.

As a result of the Company's liquidity problems,  its auditors,  Ham, Langston &
Brezina,  L.L.P.,  have added an  explanatory  paragraph to their opinion on the
Company's  financial  statements  indicating that substantial doubt exists about
the Company's ability to continue as a going concern.

Impact of Year 2000

The Year 2000 ("Y2K") issue results from computer  programs  having been written
using two digits  rather  than four to define the  applicable  year.  Any of the
Company's  computer  programs that have time sensitive  software may recognize a
date using "00" as the year 1900 rather than the year 2000. This could result in
a system failure or miscalculation causing a disruption of business activities.
- --------------------------------------------------------------------------------
                                       19
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The Company has performed only a preliminary assessment of the Y2K issue using a
broad overview and  management's  current  understanding  of its information and
non-information  systems and its informal  understanding  of the information and
non-information  systems of its significant suppliers and major customers.  None
of the detailed tasks necessary to properly assess the Y2K issue (such as direct
coordination with vendors, customers and manufacturers) have been performed.

Based on a preliminary  assessment,  the Company  believes that it will not need
significant  modifications  to its  computer  software or hardware  and that its
existing  computer  systems  (including  information  systems,   non-information
systems using date  sensitive  embedded  chips and its  POSICAMTM  systems) will
function  properly with respect to dates in the year 2000 and thereafter.  Based
upon such preliminary assessment, the Company also currently believes that costs
to modify the  Company's  existing  computer  hardware and  software  systems in
regard to the Y2K issue will not be significant  and should not exceed  $10,000.
However, the Y2K issue is extremely complex and the costs to properly assess its
impact  on  the  Company  and  to  correct  associated   problems  may  be  very
significant.

Based  on  the  Company's  preliminary  assessment  of  its  relationships  with
significant  suppliers and major customers to understand the extent to which the
Company is  vulnerable  to any failure by third  parties to remedy their own Y2K
issues,  management believes that the Company does not have significant exposure
with respect to third parties.  However, the Company's  preliminary  assessments
indicated  that the worst case  scenario  with  regard to the Y2K issue would be
delays in receiving parts and materials needed for  manufacturing  and delays by
customers in making payments for fee-per-scan and maintenance  services.  In the
Company's  current financial  position,  such  circumstances  could threaten the
Company's continued existence.

Due to the Company's current severe liquidity problems,  the Company has not had
the financial resources to perform a complete  assessment of Y2K issues,  assess
the  potential  cost or develop any  contingency  plan with regard to Y2K issues
that may arise.  The Company is unable to predict at the current time,  when and
to what extent it may continue to pursue its  assessment of potential Y2K issues
and the development of any related  contingency plans. If the Company can obtain
necessary financial resources, it will complete its assessment of the Y2K issues
facing the Company during the third quarter of 1999.

Information Regarding and Factors Affecting Forward Looking Statements

The Company is  including  the  following  cautionary  statement  in this Annual
Report on Form 10-KSB to make  applicable  and take advantage of the safe harbor
provision  of the  Private  Securities  Litigation  Reform  Act of 1995  for any
forward looking statements made by, or on behalf of the Company. Forward looking
statements include statements concerning plans,  objectives,  goals, strategies,
future events or performance  and underlying  assumptions  and other  statements
which  are  other  than  statements  of  historical  facts.  Certain  statements
contained herein are forward looking statements and, accordingly,  involve risks
and  uncertainties  which  could  cause  actual  results or  outcomes  to differ
materially from those expressed in the forward looking statements.

The Company's expectations,  beliefs and projections are expressed in good faith
and are believed by the Company to have a reasonable  basis,  including  without
limitations,  management's  examination  of historical  operating  trends,  data
contained in the Company's  records and other data available from third parties,
but  there  can  be no  assurance  that  management's  expectation,  beliefs  or
projections  will result or be achieved  or  accomplished.  In addition to other
factors and matters  discussed  elsewhere  herein,  the  following are important
factors that, in the view of the Company,  could cause actual  results to differ
materially from those discussed in the forward looking  statements:  the ability
of the  Company  to  attain  widespread  market  acceptance  of its  POSICAM(TM)
systems;  the ability of the Company to obtain  acceptable  forms and amounts of
financing to fund future  operations;  demand for the  Company's  services;  and
competitive  factors. The Company disclaims any obligation to update any forward
looking statements to reflect events or circumstances after the date hereof.
- --------------------------------------------------------------------------------
                                       20
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------

                          Item 7. Financial Statements

The  required  Financial  Statements  and the notes  thereto are  contained in a
separate  section of this report beginning with the page following the signature
page.

            Item 8. Changes in and Disagreements with Accountants on
                       Accounting and Financial Disclosure

On April 7, 1998, Coopers & Lybrand L.L.P. ("Coopers & Lybrand"),  by means of a
letter  addressed  to the Chairman of the Board and Chief  Executive  Officer of
Positron  Corporation informed the Company that it had resigned as the Company's
independent auditors.  The resignation arises from Coopers & Lybrand's desire to
terminate its  relationship  with the Company  because of the Company's  current
financial condition.

The report of Coopers & Lybrand  for either of the of the past two years did not
contain an opinion or disclaimer of opinion, or qualification or modification as
to uncertainty,  audit scope, or accounting  principles,  except:  (i) Coopers &
Lybrand's  report on the  financial  statements of the Company as of and for the
years ended December 31, 1996,  contained a separate paragraph stating that "the
Company has  suffered  recurring  losses from  operations  and has a net capital
deficiency  that  raises  substantial  doubt  about its ability to continue as a
going concern.  Management's plans in regard to these matters are also described
in Note 1. The financial  statements do not include any  adjustments  that might
result from the outcome of this uncertainty";  and (ii) The financial statements
as of and for the fiscal year ended December 31, 1997 have not been audited.

This  decision to resign was made by Coopers & Lybrand and was neither  approved
nor disapproved by the Company's Board of Directors.

During the two most recent fiscal  periods ended  December 31, 1998 and December
31,  1997  and  from  December  31,  1997 to the  date of  Coopers  &  Lybrand's
resignation,  there were: (i) no disagreements between the Company and Coopers &
Lybrand on any matter of accounting principles or practice,  financial statement
disclosure, or auditing scope or procedure,  which disagreements if not resolved
to the  satisfaction of Coopers & Lybrand would have caused it to make reference
thereto in its report;  and (ii) no  reportable  events as defined in  paragraph
304(a)(1)(iv) of Regulation S-B.

Coopers & Lybrand has provided the  Securities  and Exchange  Commission  with a
letter agreeing to the disclosure contained herein.

Coopers and Lybrand was replaced by Ham, Langston & Brezina,  L.L.P. on June 26,
1998.

Prior to the  engagement  of Ham,  Langston &  Brezina,  L.L.P.  as  independent
auditors,  the Company had not  consulted  them  regarding  the  application  of
accounting principles to a specified transaction,  either completed or proposed;
or the type of audit opinion that might be rendered on the  Company's  financial
statements or any other financial presentation whatsoever.

No disagreements  exist between the Company and Ham, Langston & Brezina,  L.L.P.
on any  matters of  accounting  principles  or  practices,  financial  statement
disclosure, or auditing scope or procedure.
- --------------------------------------------------------------------------------
                                       21
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------

                                    PART III

      Item 9. Directors, Executive Officers, Promoters and Control Persons;
                Compliance with Section 16(a) of the Exchange Act

                        DIRECTORS AND EXECUTIVE OFFICERS

The directors,  executive  officers and key employees of the Company  consist of
the following individuals:

  Name                        Age            Position

  S. Lewis Meyer               54   Director,   Chairman   of  the   Board
                                    (appointed/effective January 22,1999)

  Gary H. Brooks               50   Director,  President,  Chief Financial
                                    Officer and Secretary
                                    (appointed/effective January 22, 1999)

  Gary B. Wood, Ph.D.          47   Director, Chief Executive Officer
                                    (resigned as CEO effective January 22, 1999)

  K. Lance Gould. M.D.         57   Director
                                    (resigned effective December 18, 1998)

  John H. Laragh, M.D.         69   Director
                                    (resigned effective December 18, 1998)

  Ronald B. Schilling, Ph.D.   56   Director
                                    (resigned effective December 18, 1998)

  William S. Kiser, M.D.       68   Director (resigned effective
                                    May 1,  1998)

  Howard R. Baker              45   Executive Vice President (resigned
                                    effective April 14,  1998)
 
  David O. Rodrigue            49   Chief Financial Officer and Secretary
                                    (resigned effective January 21,  1998)

S. Lewis Meyer was appointed a director and Chairman of the Board of the Company
effective January 22, 1999. He also serves as President, Chief Executive Officer
and Director of Imatron to which he was appointed in June 1993.  From April 1991
until joining Imatron,  he was Vice President,  Operations of Otsuka Electronics
(U.S.A.)  Inc.,  Fort Collins,  Colorado,  a manufacturer  of clinical  magnetic
resonance systems and analytical nuclear magnetic resonance spectrometers.  From
August  1990 to  April  1991,  he was a  founding  partner  of  Medical  Capital
Management,  a company  engaged  in  providing  consulting  services  to medical
equipment   manufacturers,   imaging  service  providers,  and  related  medical
professionals.  Prior thereto,  he was President and Chief Executive  Officer of
American Health Services Corp. (now Insight Health Services  Corp.), a developer
and operator of diagnostic imaging and treatment  centers.  During his tenure at
American  Health  Services Corp., it was one of the fifty fastest growing public
companies in the United States.

In addition to his duties as Chairman of the Company's  Board of Director and as
President and Chief Executive Officer of Imatron, Mr. Meyer serves as a Director
for BSD Medical Corp. and Finet Holdings Corp.,  publicly held companies engaged
in the design and  manufacture of medical  hypothermia  equipment and electronic
real estate and mortgage banking services, respectively.

Mr.  Meyer  received  his B.S.  degree in  Physics  from the  University  of the
Pacific,  Stockton,  California,  in 1966, a M.S.  degree in Physics from Purdue
University in 1968, and a Ph.D. in Physics from Purdue University in 1971.

Gary H. Brooks was  appointed  President,  CFO and  Secretary  of the Company on
January 22, 1999.  He also serves as Vice  President of  Finance/Administration,
Chief Financial  Officer,  and Secretary of Imatron to which he was appointed in
December  of 1993.  Prior to joining  Imatron,  Mr.  Brooks was Chief  Financial
Officer  and  Director  for  five  years at  Avocet,  a  privately-held,  sports
electronics manufacturer located in Palo Alto, California. Prior thereto, he had
progressively responsible positions in accounting and finance at several Fortune
500 companies including Ford, Rockwell, Bendix, and ITT.
- --------------------------------------------------------------------------------
                                       22
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Mr.  Brooks  also serves as Chief  Financial  Officer of  Imatron's  subsidiary,
HeartScan Imaging, Inc.

Mr.  Brooks  received  his  B.A.  in  Zoology  in 1970  from the  University  of
California,  Berkeley,  and a M.B.A.  in Finance and Accounting in 1973 from the
University of California, Los Angeles.

Gary B.  Wood,  Ph.D.,  has  served as  director  and  Chairman  of the Board of
Directors of the Company  from April 1990.  From October 1, 1994 to December 31,
1995,  he also acted as  President  and Chief  Executive  Officer of the Company
until Werner Haas was appointed President and Chief Executive Officer in January
1996.  Upon the  resignation  of Dr. Werner J. Haas in February  1997,  Dr. Wood
again  assumed the duties of  President  and CEO pending the  selection of a new
President and CEO.

Mr.  Wood is  also  President  of  Concorde  Financial  Corporation,  a  private
investment  management and  consulting  firm which he founded in 1981 and is the
founder, chairman and a principal shareholder of OmniMed Corporation,  a venture
capital  investment  firm  founded in 1986.  Dr.  Wood is also the  founder  and
Chairman of Uro-Tech Management  Corporation (a wholly owned subsidiary OmniMed)
founded in 1983.  Both  OmniMed and  Uro-Tech  specialize  in  investing  in the
biotechnology  and  health  care  industries.  Dr.  Wood  holds  a BS  and MS in
Electrical  Engineering  (with special emphasis in Biomedical  Instrumentation),
and an  interdisciplinary  Doctorate of Philosophy  from Texas Tech  University.
Certain of the entities controlled by Dr. Wood are principal shareholders of the
Company.

K. Lance Gould, M.D., one of the inventors of the Company's  POSICAM(TM) system,
served as Company  Director from 1984 until December 1998 and as Special Medical
Consultant  to the Company from 1984 until the  present.  For more than the last
five years, Dr. Gould has served as a Professor of Medicine at the University of
Texas  Medical  School in Houston.  Dr. Gould holds a BA in Physics from Oberlin
College and a M.D. from Western Reserve Medical School.

John H. Laragh,  M.D.  served as a director from December 1993 to December 1998.
Dr.  Laragh has been Chief of the Division of  Cardiology  of the  Department of
Medicine at the Cornell  University  Medical College since 1976, and Director of
the Cardiovascular  Center at the New York Hospital Cornell Medical Center since
1975. Dr. Laragh holds a BA and a M.D. from Cornell University.

Ronald B.  Schilling,  Ph.D.,  served as a  director  from  March  1995 to until
December 1998. Since 1992 he has served as President and Chief Executive Officer
of Prime-X,  General Imaging,  Inc., a sensor imaging  technology  company,  and
served as a consultant to other medical technology companies. From 1987 to 1992,
Dr.  Schilling was Senior Vice President and General  Manager at Toshiba America
Medical  Systems,  Inc., a medical  technology  company.  Dr.  Schilling holds a
B.S.E.E.  in electrical  engineering  from City College of New York, an M.S.E.E.
from Princeton University, and Ph.D. from the New York Polytechnic Institute.

                         Item 10. Executive Compensation

The following tables set forth certain  information with respect to compensation
paid by the  Company  during the years  ended  1998,  1997 and 1996 and  certain
information  regarding  stock options issued to certain of the  individuals  who
have acted as executive officers of the Company during 1998 and 1997.
<TABLE>
                                            Summary Compensation Table
<CAPTION>
                                                   Annual Compensation           Awards   Payouts
          (a)             (b)       (c)      (d)           (e)            (f)         (g)     (h)          (I)
                      ------------------------------------------------------------------------------------------- 
                                                                     Restricted  Options/
Name and Principal    Fiscal    Salary    Bonus     Other Annual        Stock      SARs     LTIP        All Other
       Position        Year        ($)      ($)     compensation     Award(s)        (#)  Payouts ($)Compensation
- -----------------------------------------------------------------------------------------------------------------
<S>                   <C>        <C>      <C>          <C>                 <C>    <C>         <C>           <C>         
Gary B. Wood Ph.D.    1998        93,333      -            -               -          -       -             -
President and Chief   1997        33,333      -            -               -          -       -             -
Executive Officer(1)  1996        13,750  19,800       98,000 (2)          -          -       -             -

Howard Baker          1998       163,027       -           -               -          -       -             -
Executive Vice        1997        91,000       -           -               -          -       -             -
President             1996       153,500  10,700        2,375              -      12,500(3)   -             -
- --------------------------------------------------------------------------------
                                       23
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------

<FN>
(1)      October 1, 1994 to  December 31, 1995 and February 1, 1997 to Present.

(2)      Represents $80,000 in consulting fees paid to Dr. Wood and  $18,000 in directors fees.

(3)      Represents options to acquire Common Stock awarded under the 1994 Incentive and Non-statutory Option Plan.
</FN>
</TABLE>
<TABLE>
                                    Aggregated Option/SAR Exercises in Last Fiscal Year
                                           and Fiscal Year-End Option/SAR Values
<CAPTION>
             (a)                    (b)           (c)                   (d)                              (e)
                                                            --------------------------      ---------------------------
                                                               Number of Unexercised         Value of Unexercised In-the-
                                                            Options/SARs at Fiscal Year-     Money Options/SARs at Fiscal
                                                                        End                            Year-End
- ------------------------       ------------    --------     -----------    ------------     -----------     ------------
                                   Shares        Value
                                Acquired on    Realized     Exercisable    Unexercisable    Exercisable     Unexercisable
            Name                Exercise (#)      ($)           (#)             (#)             ($)              ($)
- ------------------------       ------------    --------     -----------    ------------     -----------     -------------
<S>                                       <C>         <C>        <C>                  <C>          <C>               <C> 
Gary B. Wood, Ph.D.                       0           0          71,440               0            0(1)              0(1)

<FN>
(1)   Based upon the exercise price in effect on  December 31,  1998 and the closing price of $0.250 for the Company's  Common Stock
      on December 31, 1998, as reported on the NASDAQ National Market System.
</FN>
</TABLE>
Compensation of Directors

The Company  reimburses its directors for their reasonable  expenses  associated
with attending meetings of the Board of Directors.  The Company also compensates
each  director  who is not a full time  employee of the Company in the amount of
$12,500 per year.  The Chairman of the Board also receives an additional  annual
retainer of $2,000 per year and each director who is not a full time employee of
the  Company  and who is a  member  of a  committee  of the  board  receives  an
additional $500 per committee meeting attended,  not to exceed $2,500 during any
calendar  year.  Any director who is not a full time employee of the Company and
who  is  serving  as the  chairman  of a  committee  of the  board  receives  an
additional  $2,000  per  year for  such  services.  For  purposes  of the  above
described  director  compensation,  Dr. Wood, while serving as interim President
and Chief Executive Officer, has not been considered a full time employee of the
Company. Due to the financial liquidity problems the Company is experiencing, no
cash payments  were made to any of the  directors  during 1998 or 1997 for their
services as  directors of the  Company.  As of December  31, 1998  approximately
$540,000 was owed to Directors or former Directors of the Company.

Pursuant to the 1994 Incentive and Non-statutory  Option Plan (the "1994 Plan"),
each non-employee  director is automatically  granted a one time stock option to
purchase 10,500 shares of Common Stock at the time such person is elected to the
Board of Directors.  In addition,  pursuant to the 1994 Plan, each  non-employee
director   upon  his   reelection  at  the  Annual   Shareholder   Meeting  will
automatically  receive an option to purchase a number of shares of Common  Stock
equal to the  quotient  derived by dividing  $15,000 by the fair market value of
Common  Stock on the date of the grant.  All  options so granted  under the 1994
Plan  to  non-employee  directors  are  automatically  granted  as of the  first
business  day  following  the date  such  person is  elected  or  reelected,  as
applicable,  as a  director  and have an  exercise  price no less  than the fair
market value of Common Stock  determined  as of the business day  preceding  the
date of the grant.
- --------------------------------------------------------------------------------
                                       24
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
One-third of the options granted to  non-employee  directors under the 1994 Plan
are  exercisable  as of the date of the grant,  an additional  one-third of such
options  becomes  exercisable  upon the first  anniversary of such date with the
remaining  one-third  becoming  exercisable upon the second  anniversary of such
date. If a  non-employee  director  ceases to be a director for any reason other
than as a result of death,  disability or not being  reelected as a director (in
the case where such person is willing to serve as a director but such person has
not been renominated for election or, if renominated, the shareholders failed to
reelect such person as a director) then that director's  option will become void
to the extent it is not then exercisable and the portion,  if any, of the option
that is exercisable at such time will remain  exercisable  for the lesser of the
remaining  term of the  option or one year.  In  addition,  if any  non-employee
director  ceases to be a director as a result of death,  disability or not being
reelected  as a director (in the case where such person is willing to serve as a
director  but  such  person  has  not  been  renominated  for  election  or,  if
renominated,  the shareholders failed to reelect such person as a director) then
the option held by that director to the extent not then exercisable, will become
fully  vested and  exercisable  and the options  will remain  exercisable  for a
period of the lesser of the remainder of the term of the option or one year. The
terms of 1994 Plan  regarding  issuances  to  non-employee  directors  have been
suspended for the years ended December 31, 1998 and 1997.

Employment Agreement

On January 1, 1996, the Company entered into an employment agreement with Werner
J. Haas, Ph.D. pursuant to which Dr. Haas agreed to serve as President and Chief
Executive  Officer  of the  Company  for a term  of two  years.  The  employment
agreement  provided for the payment of an annual salary of $200,000,  bonuses in
an amount to be  determined  at the  discretion of the Board of Directors of the
Company,  and  participation in any employee benefit plan adopted by the Company
for its employees.

The  employment   agreement  provided  that  the  Company  could  terminate  the
employment  agreement for cause (as defined in the agreement),  in which case no
compensation   or  benefits  would  be  paid  under  the  employment   agreement
thereafter.  If the  employment  agreement was terminated for reasons other than
for cause,  Dr.  Haas would be  entitled  to (I)  receive the full amount of his
salary and all  benefits for the  remainder  of the term and (ii) the  immediate
vesting of any unvested Company stock options he holds.

On February  18, 1997,  Dr. Haas  informed the Board of Directors of the Company
that he considered his contract to have been  terminated by the Company  without
cause as a result of the Company's  failure to pay the February 15, 1997 payroll
to any of its management  level  employees and, more  specifically,  to him. Dr.
Haas has  demanded  that the  Company pay him all past due salary as well as the
nine months severance pay specified in his employment  agreement if his contract
is determined to have been  terminated  without  cause.  Additionally,  Dr. Haas
resigned  his  position as a member of the  Company's  Board of  Directors.  The
Company has  indicated to Dr. Haas that it believes no amounts are due him under
his employment agreement.  As of December 1998, the Company is unable to predict
the outcome of the disagreement between Dr. Haas and the Company.

Dr. Wood assumed the duties of President  and Chief  Executive  Officer upon the
resignation of Dr. Haas and continued until January 22, 1999 when Gary H. Brooks
assumed the position of President.

1987 Stock Option Plan

The Company  adopted an Amended and  Restated  1987 Stock Option Plan (the "1987
Plan")  which was  adopted by the Board of  Directors  and  shareholders  of the
Company  effective  June 1, 1987,  and was  amended on March 13,  1991,  and was
further  amended in March  1992,  September  1992 and  November  1993.  The plan
provided  for  options up to a total of  188,522  shares of Common  Stock.  . No
options could be granted  under the 1987 Plan after June 1, 1997.  The 1987 Plan
provides that incentive options which satisfy the requirements of Section 422 of
the Internal Revenue Code could be granted to executives and other key employees
(including officers who may be members of the Board of Directors) of the Company
and that  nonqualified  options  could be granted to such  directors,  executive
employees and other key employees  (including officers who may be members of the
Board of Directors of the  Company),  each as the Board of Directors  determined
from  time to time.  If any  options  granted  under  the 1987  Plan  expire  or
terminate without being exercised, the shares covered thereby were added back to
the shares reserved for issuance under the 1987 Plan.
- --------------------------------------------------------------------------------
                                       25
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
The Compensation Committee of the Board of Directors administered the 1987 Plan.
The 1987 Plan  provides that options could be granted at no less than 75% of the
fair market  value of the Common  Stock on the date of the grant (or 110% of the
fair market value for options granted to participants who own 10% or more of the
Company's outstanding Common Stock).

The  Compensation  Committee  determined,  at its discretion,  the persons to be
granted options,  option prices, date of grant and vesting periods,  although no
option  could extend for longer than ten years (five years for  incentive  stock
options granted to 10% or greater  stockholders).  Payment of the exercise price
is made by check or in such  other  form as may be  acceptable  to the  Board of
Directors. Common Stock Options are not transferable by the optionee, other than
by will or the  applicable  laws of descent  and  distribution.  In the event of
termination  of  employment,  the option  expires  on the  earlier of its stated
expiration  or three  months  (six months in the case of the  optionee's  death)
after termination of employment.

In the  event  of a  recapitalization,  reorganization  or other  change  in the
Company's capital structure or a merger or consolidation or the sale or transfer
of all or part of its  assets,  the 1987 Plan  provided  for  adjustment  of the
shares of Common Stock covered by the 1987 Plan and outstanding  options granted
pursuant to the 1987 Plan.

In November 1993 the Board of Directors canceled all of the outstanding  options
under the 1987 Plan.  Concurrently with such  cancellation,  the Company entered
into  agreements  with the holders of the  canceled  options  providing  for the
reissuance of such options at an exercise  price of $6.1875 per share.  In April
1994, the Company issued options  replacing the previously  canceled options and
issued  additional  options for a total of 185,229  shares of Common Stock at an
exercise  price of $6.1875 per share.  All of such options  vested on January 1,
1995.

On February 23, 1995,  the exercise price of all  outstanding  options under the
1987 Plan was amended to reflect a new exercise price of $2.625 per share, which
was the market price of the Common Stock on such date. In addition, on such date
an  additional  62,500  options were  awarded  under the 1987 Plan at the $2.625
exercise price.

1994 Incentive and Non-statutory Option Plan

On June 3, 1994, the shareholders of the Company approved the 1994 Incentive and
Non-statutory  Option Plan (the "1994  Plan").  The 1994 Plan is an  arrangement
under which  certain  individuals  may be granted  options for  incentive  stock
options  and  Non-statutory  stock  options  as  described  below.   Subject  to
adjustment as set forth in the 1994 Plan, the aggregate  number of shares of the
Company's  Common  Stock that may be the  subject of awards is  610,833.  Of the
610,833 shares of Common Stock  available  under the 1994 Plan 160,000 have been
reserved  for  issuance to  non-employee  directors.  As of December  31,  1998,
345,481  options had been  granted to  employees  and  113,724  options had been
granted to non-employee directors.

The Compensation  Committee of the Board of Directors administers the 1994 Plan.
The  Compensation  Committee  consists of two or more directors who,  except for
automatic  grants for  non-employee  directors under Section 7 of the 1994 Plan,
are not eligible and have not, within a one year prior to the appointment of the
Compensation Committee, received equity securities of the Company under the 1994
Plan or any other  incentive  plan of the Company.  The  Compensation  Committee
currently consists of Dr. Wood.

Under  the  1994  Plan,  the  Compensation  Committee  has wide  discretion  and
flexibility,  enabling the Compensation Committee to administer the 1994 Plan in
the manner  that it  determines  is in the best  interest  of the  Company.  The
Compensation  Committee  has the  authority to designate  recipients  of options
under the 1994 Plan, to interpret  and construe the  provisions of the 1994 Plan
and  any  options  granted  thereunder,  and  to  do  all  things  necessary  or
appropriate to administer the 1994 Plan in accordance with its terms.

401(k) Plan

The Company has a 401(k)  Retirement  Plan and Trust (the  "401(k)  Plan") which
became  effective  as of January  1, 1989.  Employees  of the  Company  who have
completed  one-quarter  year of service and have attained age 21 are eligible to
participate  in the 401(k) Plan.  Subject to certain  statutory  limitations,  a
participant may elect to have his or her  compensation  reduced by up to 20% and
have the Company contribute such amounts to the 401(k) Plan on his or her behalf
("Deferral  Contributions").  The Company makes contributions in an amount equal
- --------------------------------------------------------------------------------
                                       26
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
to  25%  of  the  participant's  Deferral  Contributions  up to  6%  of  his/her
compensation ("Employer Contributions"). Additionally, the Company may make such
additional contributions as it shall determine each year in its discretion.  All
Deferral  and  Employer  Contributions  made  on  behalf  of a  participant  are
allocated to his/her  individual  accounts and such  participant is permitted to
direct the investment of such accounts.

A  participant  is fully vested in the current  value of that portion of his/her
accounts  attributable to Deferral  Contributions.  A participant's  interest in
that  portion of his/her  accounts  attributable  to Employer  Contributions  is
generally fully vested after five years of employment.  Distributions  under the
401(k) Plan are made upon termination of employment,  retirement, disability and
death.  In addition,  participants  may make  withdrawals in the event of severe
hardship or after the participant attains age fifty-nine and one-half.

The 401(k) Plan is intended to qualify under Section 401 of the Internal Revenue
Code of 1986,  so that  contributions  made  under the 401(k)  Plan,  and income
earned on contributions,  are not taxable to participants  until withdrawal from
the 401(k) Plan.

The Company's contributions to the 401(k) Plan on behalf of all employees in the
years ended December 31, 1998 and 1997 was $11,490 and $36,306 respectively. Dr.
Wood is not eligible to participate in the Company's 401(k) Plan.

Policy with Respect to $1 Million Deduction Limit

It is the  Company's  policy,  where  practical,  to avail  itself of all proper
deductions under the Internal  Revenue Code.  Amendments to the Internal Revenue
in 1993, limit, in certain  circumstances,  the deductibility of compensation in
excess of $1 million  paid to each of the five highest  paid  executives  in one
year.  The total  compensation  of the  executive  officers  did not exceed this
deduction limitation in fiscal year 1998 or 1997.

     Item 11. Security Ownership of Certain Beneficial Owners and Management

The  following  table sets forth  certain  information  as of December 31, 1998,
regarding  the ownership of Common Stock of: (i) each person who is known by the
Company to be the beneficial  owner of more than five percent of the outstanding
shares of Common Stock; (ii) each director and executive officer of the Company;
and (iii) all  executive  officers  and  directors  of the  Company  as a group.
Included in the "Number of Shares of Common  Stock" are shares  attributable  to
options or warrants that are exercisable as of, or will be exercisable within 60
days after, December 31, 1998.

<TABLE>
<CAPTION>
                                        Common Stock              Preferred Stock A            Preferred Stock B
                                  -------------------------    -------------------------    -------------------------
Beneficial Owner(1)               Shares      % Outstanding     Shares     % Outstanding     Shares    % Outstanding
- -------------------               ------      -------------     ------     -------------     ------    -------------
<S>                               <C>               <C>         <C>              <C>         <C>             <C>  
Auer & Co.(2)                     600,000           11.3%       399,996          25.1%
c/o ASB Capital Mgt.
1101 Pennsylvania Avenue
NW, Suite 300
Washington, DC 20004

DHB Capital                                                                                  25,000          100%
11 Old Westbury Rd.
Old Westbury, NY  11568

Uro-Tech, Ltd.(3)                 865,523           15.5%       433,329           27.2%
5430 LBJ Freeway
Dallas, Texas  75240

Gary B. Wood, Ph.D.(5)             80,793            1.6%
Omni-MedCorporation
5430 LBJ Freeway
Dallas, Texas  75240

All Directors and Executive       225,041            4.4%       
Officers as a Group (5 persons)
<FN>
*  Less than 1%
- --------------------------------------------------------------------------------
                                       27
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
(1)      Except as otherwise indicated, each stockholder has sole investment and
         sole voting  power with respect to the shares of Common Stock or Series
         A Preferred Stock shown.

(2)      Includes  600,000 shares issuable upon the conversion of 400,000 shares
         of Series A 8% Cumulative  Convertible  Redeemable  Preferred Stock and
         200,000 warrants to purchase Common Stock.

(3)      Includes  424,787  shares of Common  Stock owned by  Uro-Tech,  Ltd., a
         Texas  limited  partnership,  the  general  partner of which is OmniMed
         Corporation  ("OmniMed").  Includes  156,565  shares  of  Common  Stock
         issuable upon the exercise of Series E Warrants held by Uro-Tech,  Ltd.
         Includes  650,000 shares issuable upon the conversion of 433,333 shares
         of Series A 8% Cumulative  Convertible  Redeemable  Preferred Stock and
         216,671  warrants to purchase Common Stock acquired upon the conversion
         of $650,000 in principal  amount of the Uro-Tech  Loan.  Also  includes
         67,500  shares  issuable upon the  conversion  of warrants  acquired in
         connection with the Uro-Tech Loan. Dr. Wood is Chairman of the Board of
         Directors,  and  beneficially  owns  63.7%  of the  outstanding  voting
         securities,  of OmniMed.  All shares beneficially owned by OmniMed have
         been included in the total number of shares  beneficially  owned by Dr.
         Wood.

(4)      Includes  7,304  shares of Common  Stock  issuable  upon  exercise of a
         warrant  held by Dr. Wood and 50,000  shares of Common  Stock  issuable
         upon  exercise  of an option  granted  to Mr.  Wood on March 24,  1995.
         Includes  7,000 shares of Common Stock issuable upon the exercise of an
         option  granted  to Dr.  Wood in June 1994 and  1,209  shares of Common
         Stock  issuable up to exercise of an option granted to Dr. Wood in June
         1995.  Includes  15,280  shares of Common Stock  beneficially  owned by
         OmniMed.  Dr. Wood owns 63.7% of the outstanding  voting  securities of
         OmniMed.
</FN>
</TABLE>
             Item 12. Certain Relationships and Related Transactions

Royalty Payments

In 1984,  the Company  licensed  for use in the United  States the  know-how and
patent rights relating to positron imaging (the "Licensed Technology") possessed
by the Clayton Foundation, K. Lance Gould (a forner director of the Company) and
Nizar A. Mullani (a former  director of the  Company).  The Company is currently
obligated to pay royalties of 3% of the gross revenues from sales, uses, leases,
licensing  or  rentals  of the  Licensed  Technologies,  1% each to the  Clayton
Foundation,  K. Lance Gould and Nizar A.  Mullani.  The Company has not made any
royalty payments since 1993. As of December 31, 1998 approximately  $368,000 was
owed to Messrs-Gould & Mullani and the Foundation for past due royalties.

The Company's  current 3% royalty is based on  agreements  with Nizar A. Mullani
and K. Lance Gould to reduce the royalty  payments due to them by the Company in
consideration  of payments to be made to them under  consulting  agreements  and
promissory notes. The consulting agreements provide that if the Company defaults
in its payment obligations  thereunder,  then Mr. Mullani and Dr. Gould would be
entitled to receive a regrant of the royalties that they previously released. On
April 12, 1998, the Company  received a demand letter from Mr. Mullani  alleging
default  under  his  consulting  agreement  and  demanding  the  regrant  of  an
additional 1% royalty  interest.  Although the Company has not received any such
demand from Dr.  Gould,  the Company  believes  that a payment  default may have
occurred under Dr. Gould's  consulting  agreement and that as a result  thereof,
Dr.  Gould  may be  entitled  to the  regrant  of an  additional  0.5%  royalty,
resulting in an increase of the Company's  royalty  obligations from 3% to 4.5%.
Increase in royalty obligations  resulting from Mr. Mullani's claim could have a
material  adverse  effect on the  Company's  future  financial  performance.  In
December  1998,  the Company  reached an agreement  in principle  with Dr. Gould
regarding payment of back royalties,  waiver of demand rights regarding defaults
under the consulting  contract and retaining the reduced  royalty  payment level
going forward.
- --------------------------------------------------------------------------------
                                       28
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
Conversion of Debt

On January  15,  1993,  the  Company  and Dr. K.  Lance  Gould  entered  into an
agreement (the "Gould Agreement") pursuant to which (I) Dr. Gould exchanged a 9%
Convertible Promissory Note in the principal amount of $281,250 issued to him on
December  22, 1988 for a new 9%  Convertible  Promissory  Note in the  principal
amount of  $281,250,  (ii) in exchange  for past due  royalties in the amount of
$36,951 and accrued  interest in the amount of $101,643,  the Company issued Dr.
Gould a  second  9%  Convertible  Promissory  Note in the  principal  amount  of
$138,594  with an  original  maturity  date  of  October  31,  1993  (which  was
subsequently  extended to December 15,  1993),  (iii) the Company  issued to Dr.
Gould a warrant expiring July 25, 1996, to purchase 9,936 shares of Common Stock
at an exercise price of $25.59 per share, and (iv) the Company agreed to pay Dr.
Gould's legal fees in the amount of $15,125 in connection  with the  negotiation
of the  Gould  Agreement.  Pursuant  to the  conversion  features  of  these  9%
Convertible  Promissory  Notes, upon the closing of the Company's initial public
offering,  the 9% Convertible  Promissory  Notes converted into 50,889 shares of
common stock.

In November  1993, the Company  entered into a further  agreement with Dr. Gould
under which the Company  became  obligated to extend loans to Dr. Gould in order
to provide him with funds to satisfy his personal  income tax liability  arising
out of the conversion of his 9% Convertible  Promissory Notes into Common Stock.
Such  agreement  was  entered  into by the Company in  consideration  of certain
concessions  made by Dr.  Gould  concerning  the  conversion  terms under his 9%
Convertible Promissory Notes. Pursuant to the agreement,  the loans, would be on
substantially the following terms if made: (I) limited to a principal amount not
to exceed $175,000,  (ii) interest payable at the rate of six percent per annum,
(iii)  an  initial  term of three  years,  (iv)  limited  recourse  against  the
borrower,  and (v)  collateralized  by Common  Stock owned by the  borrower.  In
accordance  with such  agreement,  on April 15,  1994,  the  Company  extended a
$165,817 loan to Dr. Gould. This loan was not repaid upon maturity and was fully
reserved by the Company at December 31, 1998.

Consultants

The Company and Dr. Wood have entered into a  Consulting  Agreement  whereby Dr.
Wood  provides  certain  managerial,  financial,  marketing  and  organizational
services to the Company.  The Company incurred fees of approximately  $80,000 in
both 1998 and 1997. In January  1998,  the Company and Dr. Wood agreed to extend
the term of such consulting agreement to December 31, 1998.

Uro-Tech Loan

During the last quarter of 1995 and the first  quarter of 1996, in order to fund
its activities the Company borrowed a total of $1,313,000 from Uro-Tech,  Ltd. ,
(the "UroTech Loan"). The Uro-Tech Loan, as amended, bears interest at 13.8% per
annum,  matured on December 5, 1998 based on  extensions  obtained in connection
with the Imatron  Transaction,  and is secured by liens and  security  interests
encumbering  most of the Company's  assets  including  the  Company's  know-how,
patents and proprietary  rights pertaining to its PET technology.  In connection
with the loan from Uro-Tech,  the Company granted Uro-Tech  warrants to purchase
67,500  shares  of  Common  Stock,  at an  exercise  price  of $2.00  per  share
exercisable through February 7, 2001.

Imatron Loan

In May 1998,  Imatron  began  making  working  capital  advances  to the Company
pursuant to a Loan and  Security  Agreement of up to $500,000 in order to enable
the  Company  to  meet  a  portion  of  its  current  obligations.  The  parties
subsequently orally agreed to extend the maximum advances  permissible under the
Loan and  Security to $600,000.  As of December  31, 1998,  Imatron had advanced
$600,000 to the Company  pursuant to the Loan and Security  Agreement.  The loan
bears  interest at 1/2% over the prime rate, is due March 1, 2000 (with interest
being  payable  monthly  during the term),  and is secured by all the  Company's
assets.  Pursuant to the agreement  entered into between Imatron and the Company
also in May 1998 ( See Part  I),  Imatron  acquired  majority  ownership  of the
Company in January 1999. Immediately thereafter, the Chief Executive Officer and
Chief  Financial  Officer of Imatron were  appointed to the  Company's  Board of
Directors  and were also  appointed  respectively  as its  Chairman,  and as its
President, Chief Financial Officer, and Secretary.
- --------------------------------------------------------------------------------
                                       29
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
                Item 13. Exhibits, Lists and Reports on Form 8-K

Exhibits:
  3.1    Articles of  Incorporation  of the Registrant  (incorporated  herein by
         reference  to Exhibit 3.1 to the  Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  3.2    By-laws of the Registrant, as amended (incorporated herein by reference
         to Exhibit 3.2 to the  Company's  Registration  Statement  on Form SB-2
         (File No. 33-68722)).
  4.1    Specimen Stock Certificate (incorporated herein by reference to Exhibit
         4.1 of the  Company's  Annual  Report on Form 10-KSB for the year ended
         December 31, 1994).
  4.2    Form of Redeemable Warrant (included as part of Exhibit 10.71)
  4.3    Statement  of   Designation   Establishing   Series  A  8%   Cumulative
         Convertible  Redeemable Preferred Stock of Positron Corporation,  dated
         February 28, 1996  (incorporated  herein by reference to Exhibit 4.3 of
         the Company's  Annual Report on Form 10-KSB for the year ended December
         31, 1995).
  4.4    Warrant  Agreement  dated as of February  29,  1996,  between  Positron
         Corporation   and   Continental   Stock   Transfer   &  Trust   Company
         (incorporated  herein by  reference  to  Exhibit  4.4 of the  Company's
         Annual Report on Form 10-KSB for the year ended December 31, 1995).
  4.5    Specimen  Redeemable  Warrant  Certificate to Purchase Shares of Common
         Stock (incorporated herein by reference to Exhibit 4.5 of the Company's
         Annual Report on Form 10-KSB for the year ended December 31, 1995).
  4.6    Stock Purchase  Warrant dated as of February 7, 1996 issued by Positron
         Corporation  to Boston  Financial  & Equity  Corporation  (incorporated
         herein by reference to Exhibit 4.6 of the  Company's  Annual  Report on
         Form 10-KSB for the year ended December 31, 1995).
  4.7    Statement  of   Designation   Establishing   Series  B  8%   Cumulative
         Convertible  Redeemable Preferred Stock of Positron Corporation,  dated
         July 9, 1996.
  4.8    Form of Warrant  Agreement dated as of July 10, 1996,  between Positron
         Corporation and Brooks Industries Profit Sharing Plan.
  10.1   Lease  Agreement  dated  as of July 1,  1991,  by and  between  Lincoln
         National   Pension   Insurance   Company   and   Positron   Corporation
         (incorporated  herein by  reference  to Exhibit  10.1 to the  Company's
         Registration Statement on Form SB-2 (File No. 33-68722)).
  10.2   Agreement  dated  as  of  March  1,  1993,  by  and  between   Positron
         Corporation and Oxford Instruments (UK) Limited (incorporated herein by
         reference to Exhibit 10.2 to the  Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.3   International  Distribution  Agreement dated as of November 1, 1992, by
         and  between  Positron  Corporation  and  Batec  International  ,  Inc.
         (incorporated  herein by  reference  to Exhibit  10.3 to the  Company's
         Registration Statement on Form SB-2 (File No. 33-68722)).
  10.4+  1994 Incentive and Nonstatutory Option Plan.
  10.5+  Amended and  Restated  1987 Stock Option Plan  (incorporated  herein by
         reference to Exhibit 10.5 to the  Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.6+  Retirement Plan and Trust (incorporated  herein by reference to Exhibit
         10.6 to the  Company's  Registration  Statement  on Form SB-2 (File No.
         33-68722)).
  10.7   Amended and Restated  License  Agreement  dated as of June 30, 1987, by
         and among The Clayton Foundation for Research, Positron Corporation, K.
         Lance  Gould,  M.D.,  and  Nizar A.  Mullani  (incorporated  herein  by
         reference to Exhibit 10.7 to the  Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.8   Clarification   Agreement  to  Exhibit  10.7  (incorporated  herein  by
         reference to Exhibit 10.8 to the  Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.9   Royalty  Assignment  dated as of December 22,  1988,  by and between K.
         Lance Gould and Positron Corporation  (incorporated herein by reference
         to Exhibit 10.10 to the Company's  Registration  Statement on Form SB-2
         (File No. 33-68722)).
  10.10  Royalty  Assignment dated as of December 22, 1988, by and between Nizar
         A. Mullani and Positron  Corporation  (incorporated herein by reference
         to Exhibit 10.11 to the Company's  Registration  Statement on Form SB-2
         (File No. 33-68722)).
  10.11  Royalty  Assignment  dated as of December 22, 1988,  by and between The
         Clayton  Foundation and Positron  Corporation  (incorporated  herein by
         reference to Exhibit 10.12 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.12+ Stock Purchase  Warrant dated October 31, 1993,  issued to Gary B. Wood
         (incorporated  herein by  reference to Exhibit  10.15 to the  Company's
         Registration Statement on Form SB-2 (File No. 33-68722)).
- --------------------------------------------------------------------------------
                                       30
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
  10.13  Amendment No. 1 to Exhibit 10.22  (incorporated  herein by reference to
         Exhibit  10.23 to the  Company's  Registration  Statement  on Form SB-2
         (File No. 33-68722)).
  10.14+ Consulting  Agreement  dated as of January  15,  1993,  by and  between
         Positron  Corporation and K. Lance Gould, M.D.  (incorporated herein by
         reference to Exhibit 10.24 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.15  Stock  Purchase  Warrant  dated  February 25, 1993,  issued to K. Lance
         Gould  (incorporated  herein  by  reference  to  Exhibit  10.26  to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.16+ Consulting  Agreement dated February 23, 1995,  effective  December 15,
         1994,  by and between  Positron  Corporation  and F. David Rollo,  M.D.
         Ph.D., FACNP.
  10.17+ Consulting  Agreement  dated as of January  15,  1993,  by and  between
         Positron  Corporation  and  Nizar A.  Mullani  (incorporated  herein by
         reference to Exhibit 10.31 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.18+ Consulting  Agreement  dated as of November  12,  1993,  by and between
         Positron  Corporation and OmniMed Corporation  (incorporated  herein by
         reference to Exhibit 10.35 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.19  Contract  No.  1318  dated as of  December  30,  1991,  by and  between
         Positron  Corporation and The University of Texas Health Science Center
         at Houston  (incorporated  herein by reference to Exhibit  10.39 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.20+ Letter Agreement dated July 30, 1993 between  Positron  Corporation and
         Howard Baker (incorporated  herein by reference to Exhibit 10.52 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.21  Technology  Transfer  Agreement  dated as of September 17, 1990, by and
         between  Positron  Corporation  and  Clayton  Foundation  for  Research
         (incorporated  herein by  reference to Exhibit  10.54 to the  Company's
         Registration Statement on Form SB-2 (File No. 33-68722)).
  10.22  Stock  Purchase  Warrant  dated as of October 31, 1993 issued to Gerald
         Hillman  (incorporated  herein by  reference  to  Exhibit  10.56 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.23  Stock Purchase Warrant dated as of October 31, 1993 issued to The Dover
         Group  (incorporated  herein  by  reference  to  Exhibit  10.57  to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.24  Stock  Purchase  Warrant  dated as of October  31,  1993 issued to John
         Wilson  (incorporated  herein  by  reference  to  Exhibit  10.63 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.25+ Stock  Purchase  Warrant  dated as of October 31, 1993 issued to Robert
         Guezuraga  (incorporated  herein by reference  to Exhibit  10.64 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.26  Stock  Purchase  Warrant dated as of October 31, 1993 issued to Richard
         Ronchetti  (incorporated  herein by reference  to Exhibit  10.65 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.27  Form of Amended and Restated  Registration Rights Agreement dated as of
         November  3,  1993,  by and among  Positron  and the other  signatories
         thereto (1993 Private Placement)  (incorporated  herein by reference to
         Exhibit  10.73 to the  Company's  Registration  Statement  on Form SB-2
         (File No. 33-68722).
  10.28  Registration  Rights  Agreement dated as of July 31, 1993, by and among
         Positron and the other signatories thereto (other than the 1993 Private
         Placement)  (incorporated  herein by reference to Exhibit  10.74 to the
         Company's Registration Statement on Form SB-2 (File No. 33-68722)).
  10.29  Software  Licenses  dated as of March 1, 1993, by and between  Positron
         Corporation and Oxford Instruments (UK) Limited (incorporated herein by
         reference to Exhibit 10.81 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.30  Distribution  Agreement  dated  as of  June  1,  1993,  by and  between
         Positron  Corporation  and  Elscint,   Ltd.   (incorporated  herein  by
         reference to Exhibit 10.82 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.31+ Employment  Agreement  dated as of  August  19,  1993,  by and  between
         Positron  Corporation and Richard E. Hitchens  (incorporated  herein by
         reference to Exhibit 10.83 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
- --------------------------------------------------------------------------------
                                       31
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
  10.32+ Employment  Agreement  dated as of  August  19,  1993,  by and  between
         Positron  Corporation  and  Howard  R.  Baker  (incorporated  herein by
         reference to Exhibit 10.84 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.33  Amended and Restated  Warrant  Agreement dated as of April 14, 1994, by
         and between  Positron  Corporation and  Continental  Stock Transfer and
         Trust Company (including form of Warrant Certificate).
  10.34  First Amendment to Amended and Restated  Registration Rights Agreement,
         dated as of November 19, 1993, by and among  Positron  Corporation  and
         the other  signatories  thereto  (incorporated  herein by  reference to
         Exhibit  10.91 to the  Company's  Registration  Statement  on Form SB-2
         (File No. 33-68722)).
  10.35  Agreement  made and entered into as of October 31, 1993, by and between
         Positron  Corporation  and  Nizar A.  Mullani  (incorporated  herein by
         reference to Exhibit 10.97 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.36  Agreement  made and entered into as of October 31, 1993, by and between
         Positron  Corporation  and  K.  Lance  Gould  (incorporated  herein  by
         reference to Exhibit 10.98 to the Company's  Registration  Statement on
         Form SB-2 (File No. 33-68722)).
  10.37  Agreement made and entered into as of November 15, 1993, by and between
         Positron  Corporation  and  Nizar A.  Mullani  (incorporated  herein by
         reference to Exhibit 10.100 to the Company's  Registration Statement on
         Form SB-2 (File No. 33-68722)).
  10.38  Agreement made and entered into as of November 15, 1993, by and between
         Positron  Corporation  and  K.  Lance  Gould  (incorporated  herein  by
         reference to Exhibit 10.101 to the Company's  Registration Statement on
         Form SB-2 (File No. 33-68722)).
  10.39  First Amendment made and entered as of January 25, 1994, by and between
         Emory University d/b/a Crawford Long Hospital and Positron  Corporation
         (incorporated  herein by reference to Exhibit  10.102 of the  Company's
         Annual Report on Form 10-KSB for the year ended December 31, 1993).
  10.40+ Employment  Agreement  dated  January 1, 1996 by and between  Werner J.
         Haas, Ph.D. and Positron Corporation  (incorporated herein by reference
         to Exhibit 10.40 of the Company's  Annual Report on Form 10-KSB for the
         year ended December 31, 1995).
  10.41  Loan and  Security  Agreement  made as of November  14,  1995,  between
         Positron  Corporation  and  Uro-Tech,   Ltd.  (incorporated  herein  by
         reference  to  Exhibit  10.41 of the  Company's  Annual  Report on Form
         10-KSB for the year ended December 31, 1995).
  10.42  First Modification and Extension  Agreement made as of January 3, 1996,
         by Positron  Corporation  and Uro-Tech,  Ltd.  (incorporated  herein by
         reference  to  Exhibit  10.42 of the  Company's  Annual  Report on Form
         10-KSB for the year ended December 31, 1995).
  10.43  Second  Modification  and Extension  Agreement  made as of February 26,
         1996 by Positron Corporation and Uro-Tech, Ltd. (incorporated herein by
         reference  to  Exhibit  10.43 of the  Company's  Annual  Report on Form
         10-KSB for the year ended December 31, 1995).
  10.44  Uro-Tech  Loan  Conversion  Agreement  dated as of November  14,  1995,
         between Positron Corporation and Uro-Tech, Ltd. (incorporated herein by
         reference  to  Exhibit  10.44 of the  Company's  Annual  Report on Form
         10-KSB for the year ended December 31, 1995).
  10.45  Promissory  Note dated  September 14, 1995, in the principal  amount of
         $1,500,000 payable to Uro-Tech,  Ltd. (incorporated herein by reference
         to Exhibit 10.45 of the Company's  Annual Report on Form 10-KSB for the
         year ended December 31, 1995).
  10.46  Promissory  Note dated  September 14, 1995, in the principal  amount of
         $1,000,000 payable to Uro-Tech,  Ltd. (incorporated herein by reference
         to Exhibit 10.46 of the Company's  Annual Report on Form 10-KSB for the
         year ended December 31, 1995).
  10.47  Revolving Finance agreement with Boston Financial & Equity  Corporation
         (incorporated  herein by  reference to Exhibit  10.47 of the  Company's
         Annual Report on Form 10-KSB for the year ended December 31, 1995).
  10.48  Security Agreement Boston Financial & Equity Corporation  (incorporated
         herein by reference to Exhibit 10.48 of the Company's  Annual Report on
         Form 10-KSB for the year ended December 31, 1995).
  10.49  Supplement  to  Security   Agreement  Security  Interest  in  Inventory
         (incorporated  herein by  reference to Exhibit  10.49 of the  Company's
         Annual Report on Form 10-KSB for the year ended December 31, 1995).
- --------------------------------------------------------------------------------
                                       32
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
  10.50  Inter-Creditor  Agreement  (incorporated herein by reference to Exhibit
         10.50 of the Company's  Annual Report on Form 10-KSB for the year ended
         December 31, 1995).
  10.51  Loan Agreement  between  Positron  Corporation  and  ProFutures  Bridge
         Capital Fund, L.P. dated November 1, 1996.
  10.52  Promissory  Note dated  November 14, 1996, in the  principal  amount of
         $1,400,000 payable to ProFutures Bridge Capital Fund, L.P.

  10.53  InterCreditor  Agreement dated November 14, 1996 among Uro-Tech,  Ltd.,
         Boston  Financial & Equity  Corporation  and ProFutures  Bridge Capital
         Fund, L.P.
  10.54  Amendment to BF&E loan
  10.55  Amendment to Uro-Tech loan
  10.56  Acquisition  Agreement  between General  Electric  Company and Positron
         Corporation dated July 15, 1996.
  10.57  Loan Agreement between Positron Corporation and Imatron, Inc..
  10.58  Sales and Marketing Agreement With Beijing Chang Feng Medical.
  10.59  Stock Purchase Agreement between Positron Corporation and Imatron, Inc.
  10.60  Promissory Note from Positron Corporation to Imatron, Inc.
  27.0*  Financial Data Schedule

  *      Filed herewith
  +      Management  contract or  compensatory  plan or  arrangement  identified
         pursuant to Item 13(a).


Form 8-K Reports:

One  current  report  on form 8-K was filed by the  Company  during  the  fourth
quarter of 1998,  on December 4, 1998  reporting  the  expiration on December 3,
1998 of its  redeemable  warrants at an exercise  price of $5.60 per share.  The
last  trade  of the  redeemable  warrants  prior to  their  expiration  occurred
December 1, 1998 on the  Over-The-Counter  Bulletin  Board for a price of $0.001
per warrant.
- --------------------------------------------------------------------------------
                                       33
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------


                                   SIGNATURES



In  accordance  with  Section 13 or 15(d) of the Exchange  Act,  the  Registrant
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.

                                 POSITRON CORPORATION



Date:  April 14, 1999            By: /s/ Gary H. Brooks
                                     -------------------------------------------
                                 Gary H. Brooks
                                 President




In  accordance  with the Exchange  Act, this report has been signed below by the
following  persons on behalf of the  Registrant and in the capacities and on the
dates indicated.




/s/ S. Lewis Meyer                         April 14, 1999
- ---------------------------------------------------------
S. Lewis Meyer
Director and Chairman of the Board



/s/ Gary H. Brooks                         April 14, 1999
- ---------------------------------------------------------
Gary H. Brooks                                                                  
Director , President, Chief Financial Officer and
Secretary



/s/ Gary B. Wood, Ph.D.                    April 14, 1999
- ---------------------------------------------------------
Gary B. Wood, Ph.D.    
Director





- --------------------------------------------------------------------------------
                                       34
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------









                              FINANCIAL STATEMENTS
                     WITH REPORT OF INDEPENDENT ACCOUNTANTS
                 for the years ended December 31, 1998 and 1997






























- --------------------------------------------------------------------------------
                                       35
<PAGE>



                                TABLE OF CONTENTS
                                -----------------


                                                                           Page
                                                                          ------

Report of Independent Accountants                                            37

Balance Sheet as of December 31, 1998                                        38

Statements of Operations for the years
ended December 31, 1998 and 1997                                             39

Statements of Stockholders' Deficit
for the  years ended December 31, 1998 and 1997                              40

Statements of Cash Flows for the years
ended December 31, 1998 and 1997                                             41

Notes to Financial Statements                                                42












- --------------------------------------------------------------------------------
                                       36
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------


Report of Independent Accountants



Board of Directors and Stockholders
Positron Corporation


We have audited the  accompanying  balance sheet of Positron  Corporation  as of
December  31,  1998 and the  related  statements  of  operations,  stockholders'
deficit and cash flows for each of the two years in the period then ended. These
financial  statements are the  responsibility of the Company's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the financial  position of Positron  Corporation  as of
December 31, 1998, and the results of its operations and its cash flows for each
of the two years in the period then ended in conformity with generally  accepted
accounting principles.

The  accompanying  financial  statements  have been  prepared  assuming that the
Company  will  continue  as a  going  concern.  As  discussed  in  Note 1 to the
financial statements,  the Company has suffered recurring losses from operations
and has a net capital deficiency that raises substantial doubt about its ability
to continue has a going concern. Management's plan with regard to this matter is
also  described  in  Note  1.  The  financial  statements  do  not  include  any
adjustments that might result from the outcome of this uncertainty.


                                        /s/ Ham, Langston & Brezina, L.L.P.

Houston, Texas
March 26, 1999





- --------------------------------------------------------------------------------
                                       37
<PAGE>
<TABLE>
FY 1998                                                 POSITRON CORPORATION                                             FORM 10-KSB
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>

                                                        POSITRON CORPORATION
                                                            BALANCE SHEET
                                                       AS OF DECEMBER 31, 1998
                                              (Amounts In thousands, except share data)
ASSETS
<S>                                                                                                                        <C>     
Current Assets:
     Cash and cash equivalents                                                                                             $      8
     Accounts receivable, net                                                                                                    99
     Inventories                                                                                                                391
     Prepaid expenses                                                                                                            58
                                                                                                                           --------

             Total current assets                                                                                               556

Plant and equipment net                                                                                                         130
                                                                                                                           --------

             Total assets                                                                                                  $    686
                                                                                                                           ========

LIABILITIES AND STOCKHOLDERS' DEFICIT Current liabilities:
     Note payable to an affiliate                                                                                          $    792
     Accounts payable and accrued liabilities                                                                                 4,723
     Unearned revenue                                                                                                           142
                                                                                                                           --------

             Total current liabilities                                                                                        5,657

Long-term Debt to an affiliate                                                                                                  600

Other liabilities                                                                                                                68
                                                                                                                           --------

              Total Liabilities                                                                                               6,325
                                                                                                                           --------

Stockholders' deficit:
   Series A Preferred Stock: $1.00 par value; 8% cumulative, convertible, redeemable;
            5,450,000 shares authorized; 1,557,403 shares issued outstanding at December 31, 1998                             1,557
   Series B Preferred Stock: $1.00 par value, 8% cumulative, convertible, redeemable;
            25,000 shares authorized, issued and outstanding at December 31, 1998                                                25
   Common stock: $0.04 par value; 100,000,000 shares authorized 5,166, 542 shares
             Issued and 5,106,386 shares outstanding at December 31, 1998                                                        52
Additional paid-in capital                                                                                                   42,426
Accumulated deficit                                                                                                         (49,684)
Treasury stock:  60,156 shares at cost                                                                                          (15)
                                                                                                                           --------

   Total stockholders' deficit                                                                                               (5,639)

              Total liabilities and stockholders' deficit                                                                  $    686
                                                                                                                           ========


<FN>
                                                  See Notes to Financial Statements
</FN>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                 38
</TABLE>
<PAGE>
<TABLE>
FY 1998                                                 POSITRON CORPORATION                                             FORM 10-KSB
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                        POSITRON CORPORATION
                                                      STATEMENTS OF OPERATIONS
                                                       YEAR ENDED DECEMBER 31
                                              (Amounts In thousands, except share data)

                                                                                     1998                1997
                                                                               -----------------    ----------------
<S>                                                                                     <C>                <C>     
Revenues:
      System sales                                                                      $    --            $  1,129
      Fee per scan                                                                          455                 602
      Service and component                                                               1,553               1,795
                                                                               -----------------    ----------------

 Total revenues                                                                           2,008               3,526
                                                                               -----------------    ----------------

Costs of sales and services:
      System sales                                                                           --                 698
      Fee per scan                                                                          118                 156
      Service, warranty and component                                                       402                 465
      Provision for inventory obsolescence                                                   --               1,224
                                                                               -----------------    ----------------

Total costs of sales and service                                                            520               2,543
                                                                               -----------------    ----------------

Gross profit                                                                              1,488                 983
                                                                               -----------------    ----------------

Operating expenses:
      Research and development                                                               --               1,305
      Selling, general and administrative                                                 1,700               3,609
                                                                               -----------------    ----------------

 Total operating costs                                                                    1,700               4,914
                                                                               -----------------    ----------------

Loss from operations                                                                      (212)             (3,931)
                                                                               -----------------    ----------------

Other expenses:
      Interest expense                                                                    (525)               (334)
      Gain on disposal of property and equipment                                             29                  --
      Other expense                                                                        (16)               (190)
                                                                               -----------------    ----------------

Total other expense, net                                                                  (512)               (524)
                                                                               -----------------    ----------------

Net loss                                                                               $  (724)           $ (4,455)
                                                                               =================    ================

Basic and dilutive net loss per common share                                          $  (0.14)           $  (0.91)
                                                                               =================    ================

Weighted average common shares outstanding                                            5,150,131           4,884,870
                                                                               =================    ================


<FN>
                                                 See notes to financial statements.
</FN>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                 39
</TABLE>
<PAGE>
<TABLE>
FY 1998                                                 POSITRON CORPORATION                                             FORM 10-KSB
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                        POSITRON CORPORATION
                                                 STATEMENT OF STOCKHOLDERS' DEFICIT
                                               YEARS ENDED DECEMBER 31, 1998 AND 1997
                                              (Amounts in thousands, except share data)


                                                      Series A                  Series B
                                                   Preferred Stock           Preferred Stock                Common Stock
                                                  Shares      Amount        Shares     Amount           Shares       Amount
<S>                                             <C>          <C>            <C>         <C>           <C>              <C>
Balance at January 1, 1997                      2,404,624    $ 2,405        25,000        25          4,312,182        $ 43
Net loss                                              --         --            --        --                 --          --
Conversion of  Series A Preferred Stock to
    Common Stock                                 (809,625)      (810)          --        --             809,625           8
Conversion of Warrants to Common Stock                --         --            --        --               7,183         --
Treasury stock received upon settlement of
    note receivable                                   --         --            --        --                 --          --
                                                ---------    -------        ------      ----          ---------        ----
Balance at December 31, 1997                    1,594,999      1,595        25,000        25          5,128,990          51

Net loss                                              --         --            --        --                 --          --
Conversion of Series A Preferred Stock to 
    Common Stock                                 ( 37,552)      ( 38)          --        --              37,552           1
Warrants issued for note extension (1,150,000)        --         --            --        --                 --          --
                                                ---------    -------        ------      ----          ---------        ----
Balance at December 31, 1998                    1,557,447    $ 1,557        25,000      $ 25          5,166,542        $ 52
                                                =========    =======        ======      ====          =========        ====
</TABLE>
<TABLE>
<CAPTION>
                                                     Additional
                                                       Paid-In     Accumulated   Treasury
                                                       Capital       Deficit       Stock         Total

<S>                                                    <C>          <C>           <C>            <C>    
Balance at January 1, 1997                             $ 41,374     $ (44,505)    $ --           $(  658)
Net loss                                                    --         (4,455)      --            (4,455)
Conversion of  Series A Preferred Stock to
    Common Stock                                            802           --        --               --
Conversion of Warrants to Common Stock                       15           --        --                15
Treasury stock received upon settlement of note
    receivable                                              --            --        (15)             (15)
                                                       --------     ---------     -----         --------

Balance at December 31, 1997                             42,191       (48,960)      (15)          (5,113)

Net loss                                                    --         (  724)      --            (  724)
Conversion of Series A Preferred Stock to 
    Common Stock                                             37           --        --               --
Warrants issued for note extension (1,150,000)              198           --        --               198
                                                       --------     ---------     -----         --------
Balance at December 31, 1998                           $ 42,426     $ (49,684)    $ (15)        $ (5,639)
                                                       ========     =========     =====         ========
<FN>
                                                 See notes to financial statements.
</FN>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                 40
</TABLE>
<PAGE>
<TABLE>

FY 1998                                                 POSITRON CORPORATION                                             FORM 10-KSB
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                        POSITRON CORPORATION
                                                       STATEMENTS OF CASH FLOW
                                                       YEAR ENDED DECEMBER 31,
                                                       (Amounts in thousands)

                                                                                        1998               1997
                                                                                    --------------     --------------
<S>                                                                                      <C>               <C>      
Cash flows from operating activities:
Net loss                                                                                 $  (724)          $ (4,455)
Adjustment  to reconcile  net loss to net cash  provided by (used in) operating
activities:
    Depreciation                                                                              250                255
    Warrants issued for interest expense                                                      198                 --
    Provision for doubtful accounts and notes receivable                                       --                456
    Provision for obsolescence of inventory                                                    --              1,224
    Net gain from sale and disposal of property and equipment                                (29)                 --
    Provision to reduce intangible assets to net realizable value                              --                 81
    Amortization of intangible assets                                                          --                 25
    Change in assets and liabilities, operating:
         Decrease in accounts receivable                                                      154                120
         Decrease in inventories                                                               17              1,001
         Decrease in prepaid expenses                                                          73                 28
         Decrease in other current assets                                                      --                426
         Increase (decrease) in accounts payable and accrued liabilities                     (30)              1,011
         Decrease in revolving line of credit                                                  --               (75)
         Increase (decrease) in other liabilities                                           (177)                177
         Increase (decrease) in unearned revenue                                               82              (207)
                                                                                    --------------     --------------

         Net cash provided by (used in) operating activities                                (186)                 67
                                                                                    --------------     --------------

Cash flows from investing activities:
    Proceeds from sale of equipment                                                           364                 --
    Capital expenditures                                                                       --                (3)
                                                                                    --------------     --------------

         Net cash provided by (used in) investing activities                                  364                (3)
                                                                                    --------------     --------------

Cash flows from financing activities:
     Proceeds from note payable to an affiliate                                               600                104
     Repayment of other notes payable                                                       (930)              (405)
     Proceeds from conversion of warrants to common stock                                      --                 15
                                                                                    --------------     --------------

         Net cash used in financing activities                                              (330)              (286)
                                                                                    --------------     --------------

Net decrease in cash and cash equivalents                                                $  (152)           $  (222)

Cash and cash equivalents, beginning of year                                                  160                382
                                                                                    --------------     --------------

Cash and cash equivalents, end of year                                                     $    8            $   160
                                                                                    ==============     ==============

<FN>
                                                 See notes to financial statements.
</FN>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                 41
</TABLE>
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------

                          NOTES TO FINANCIAL STATEMENTS

1.     Description of Business

       Positron  Corporation  (the  "Company") was  incorporated on December 20,
       1983 in the state of Texas and  commenced  commercial  operations  during
       1986.  The  Company  designs,  manufacturers,  markets and  services  its
       POSICAMTM  system advanced medical imaging  devices,  utilizing  positron
       emission  tomography  ("PET")  technology.   These  systems  utilize  the
       Company's patented and proprietary technology, an imaging technique which
       assesses the biochemistry,  cellular  metabolism and physiology of organs
       and  tissues,  as well as producing  anatomical  and  structural  images.
       Targeted  markets  include  medical  facilities  and  diagnostic  centers
       located throughout the world. POSICAMTM systems are used by physicians as
       diagnostic  and treatment  evaluation  tools in the areas of  cardiology,
       neurology and oncology.  The Company faces  competition  principally from
       two  other  companies  which   specialize  in  advanced  medical  imaging
       equipment.

       Since its  inception  the Company  has been unable to sell its  POSICAMTM
       systems in sufficient  quantities  to be  profitable.  Consequently,  the
       Company has sustained  substantial losses. Net losses for the years ended
       December 31, 1998 and 1997 were  $749,000 and  $4,455,000,  respectively,
       and at  December  31,  1998 the  Company  has an  accumulated  deficit of
       $49,709,000. The magnitude of the selling prices of the Company's systems
       and the limited number of systems sold or placed in service each year has
       caused the  Company's  revenues to fluctuate  significantly  from year to
       year.

       At December 31, 1998,  the Company had cash and cash  equivalents of only
       $8,000  compared to $160,000 at December 31,  1997.  During both 1998 and
       1997, the Company was unable to meet certain obligations as they came due
       and the Company's liquidity problems have become critical. As a result of
       the Company's severe liquidity  problem,  salary payments owed to certain
       management  level employees  totaling  approximately  $700,000 and dating
       back more than a year were unpaid at December 31, 1998. Additionally, the
       Company  is  subject to  certain  unasserted  claims  which have not been
       resolved.

       To deal with its  critical  liquidity  problem,  during  January 1999 the
       Company completed an agreement (the "Imatron  Transaction") with Imatron,
       Inc. ("Imatron"), whereby in Imatron acquired a majority ownership in the
       Company and plans to raise capital for continued operation of the Company
       (See Note 14). If Imatron is unsuccessful in its efforts to raise capital
       for the Company,  management  believes that the Company will be unable to
       continue as a going concern and that the Company's  assets will be seized
       by its secured creditors..

2.     Summary of Significant Accounting Policies

       Cash and Cash Equivalents

       Cash and cash  equivalents  include all cash  balances and highly  liquid
       investments with an original maturity of three months or less.

       Inventories

       Inventories  are  stated  at the  lower  of cost or  market  and  include
       material,  labor and  overhead.  Cost is  determined  using the first-in,
       first-out (FIFO) method of inventory valuation.

       Plant and Equipment

       Plant and  equipment are recorded at cost and  depreciated  for financial
       statement  purposes using the straight-line  method over estimated useful
       lives of three to seven  years.  Gains  or  losses  on  dispositions  are
       included  in  the  statement  of  operations  in  the  period   incurred.
       Maintenance and repair costs are charged to expense as incurred.
- --------------------------------------------------------------------------------
                                       42
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Impairment of Long-Lived Assets

       Periodically,  the Company  evaluates the carrying value of its plant and
       equipment,  and  long-lived  assets,  which  includes  patents  and other
       intangible  assets,  by comparing the  anticipated  future net cash flows
       associated  with  those  assets  to the  related  net book  value.  If an
       impairment  is indicated as a result of such  reviews,  the Company would
       remove the impairment based on the fair market value of the assets, using
       techniques such as projected future  discounted cash flows or third party
       valuations.  As of December 31, 1998 an adjustment  to intangible  assets
       was indicated and recorded.

       Revenue Recognition

       Revenues  from  POSICAMTM   system  contracts  are  recognized  when  all
       significant  costs have been  incurred and the system has been shipped to
       the customer.  Revenues from fee per scan contracts are  recognized  upon
       performance of patient  scans.  Revenues from  maintenance  contracts are
       recognized over the term of the contract. Service revenues are recognized
       upon performance of the services.

       Research and Development Expenses

       All costs related to research and  development  are charged to expense as
       incurred.

       Warranty Costs

       The Company accrues for the cost of product warranty on POSICAMTM systems
       at the time of shipment. Warranty periods generally range up to a maximum
       of one year but may extend  for  longer  periods.  Actual  results  could
       differ from the amounts estimated.

       Net Loss Per Common Share

       Basic and dilutive net loss per common share for the years ended December
       31, 1998 and 1997 have been computed by dividing net loss by the weighted
       average  number  of  shares  of common  stock  outstanding  during  these
       periods. All common stock equivalents were antidilutive.

       Estimates

       The  preparation  of financial  statements in conformity  with  generally
       accepted accounting  principles requires management to make estimates and
       assumptions  that affect the reported  amounts of assets and  liabilities
       and  disclosure of contingent  assets and  liabilities at the date of the
       financial  statements  and the reported  amounts of revenues and expenses
       during the  reporting  period.  Actual  results  could  differ from those
       estimates.

       Fair Value of Financial Instruments

       The Company includes fair value information in the notes to the financial
       statements when the fair value of its financial  instruments is different
       from the book value.  When the book value  approximates  fair  value,  no
       additional disclosure is made.

       Reclassifications

       Certain  amounts  presented in the Company's  December 31, 1997 financial
       statements  have been  reclassified  in order to conform to current  year
       presentation.

       Comprehensive Income

       Effective  January 1, 1998,  the Company  adopted  Statement of Financial
       Accounting Standards ("SFAS") No. 130, "Reporting  Comprehensive Income".
       Comprehensive income includes such items as unrealized gains or losses on
       certain  investment  securities and certain foreign currency  translation
       adjustments.  The  Company's  financial  statements  include  none of the
       additional  elements  that  affect  comprehensive  income.   Accordingly,
       comprehensive income and net income are identical.
- --------------------------------------------------------------------------------
                                       43
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Segment Information

       Effective  January 1, 1998 the  Company  adopted  SFAS 131,  "Disclosures
       About  Segments  of an  Enterprise  and  Related  Information".  SFAS 131
       requires  a company  to  disclose  financial  and other  information,  as
       defined by the statement, about its business segments, their products and
       services,  geographic areas, major customers,  revenues,  profits, assets
       and other information.  The Company believes that it operates in only one
       business segment and does not have  geographically  diversified  business
       operations.  Accordingly,  the  adoption  of  SFAS  131  did  not  have a
       significant impact on the Company (See Note 15).

3.     Accounts Receivable 

       Accounts  receivable  at December 31, 1998  consisted  of the  following:
       (dollars in thousands)

        Accounts receivable - equipment sales                            $1,011
        Accounts receivable - maintenance                                    99
                                                                    ------------

                                                                          1,110
        Less allowance for doubtful accounts                             (1,011)
                                                                    ------------

                                                                           $ 99
                                                                    ============

4.     Inventories

       Inventories at December 31, 1998 consisted of the following:  (dollars in
       thousands)

        Raw materials                                                    $1,126
        Finished goods                                                      438
                                                                    ------------

                                                                          1,564
        Less reserve for obsolescence                                    (1,173)
                                                                    ------------

                                                                           $391
                                                                    ============

        Due to  improvements  in  technology  that  will  slow  movement  of the
        Company's inventory,  the Company recorded a reserve for obsolescence of
        $1,224,000 at December 31, 1997 to reduce inventories to their estimated
        net realizable value.

5.     Plant and Equipment

       Plant and  equipment  at December 31, 1998  consisted  of the  following:
       (dollars in thousands)

        Furniture and fixtures                                             $ 86
        Computers and peripherals                                            93
        Leasehold improvements                                               17
        Machinery and equipment                                             203
                                                                    ------------

                                                                            399
        Less accumulated depreciation                                      (269)
                                                                    ------------

                                                                           $130
                                                                    ============

       During the year ended  December 31, 1998, the Company sold certain leased
       assets and disposed of various assets not in use. The net effect of these
       sales and dispositions  resulted in the Company reporting $29,000 gain in
       the accompanying statement of operations.
- --------------------------------------------------------------------------------
                                       44
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
6.     Accounts Payable and Accrued  Liabilities

       Accrued  liabilities  at December 31, 1998  consisted  of the  following:
       (dollars in thousands)

        Trade                                                           $   677
        Rent                                                                282
        Interest                                                            370
        Professional fees                                                   229
        Property tax                                                        347
        Warranty                                                          1,337
        Compensation                                                        980
        Royalties                                                           384
        Other                                                               117
                                                                    ------------
                                                                        $4, 723
                                                                    ============

7.     Notes Payable and Long-Term Debt to Affiliates

       Notes  payable and  long-term  debt to  affiliates  at December  31, 1998
       consisted of the following (dollars in thousands):

       Notes payable to Uro-Tech,  Ltd (the "Uro-Tech Loan")
       bearing  interest  at 13.8% per year and due July 31,
       1998,  (based upon  extensions  granted in connection
       with  the   Imatron   Transaction).   This   note  is
       collateralized   by  liens  and  security   interests
       encumbering   substantially   all  of  the  Company's
       assets, including the Company's know-how, patents and
       proprietary  rights pertaining to its PET technology.
       This  note  is   subordinated  to  the  Imatron  Loan
       described below and was not paid upon maturity.                     $792


       Note payable to Imatron,  Inc. (the  "Imatron  Loan")
       bearing  interest  at prime  (7.75% at  December  31,
       1998)  plus1/2percent per year and due March 1, 2000.
       Interest   is  due   monthly  on  this  note  and  is
       collateralized   by  liens  and   security   interest
       encumbering  substantially  all the Company's assets,
       including   the  Company's   know-how,   patents  and
       proprietary rights pertaining to its PET technology.                  600
                                                                       ---------
                                                                           1,392

        Less current portion                                                 792
                                                                       ---------
                                                                            $600
                                                                       =========

       In connection with the Uro-Tech Loan, the Company granted Uro-Tech,  Ltd.
       Warrants to purchase  67,500 shares of common stock at an exercise  price
       of $2.00 per share, exercisable through February 7, 2001.

       All notes payable and long-term debt outstanding at December 31, 1998 are
       due during the years ending December 31, 1999 and 2000.

8.     Common Stock-Options and Warrants

       Options

       In 1987,  the Company  established  a common stock option plan (the "1987
       Plan") covering directors,  officers and other key employees. In November
       1993, the Company canceled all options  outstanding  under the 1987 Plan.
       In connection with such cancellations,  the board of directors authorized
       the reissuance of 38,522 options to purchase shares of common stock at 75
       percent of the IPO price  following  the  closing  of an  initial  public
       offering.  Such options vested and became exercisable on January 3, 1995.
       In addition,  in February  1994,  the board of directors  authorized  the
       issuance of an additional  150,000  options at the same  exercise  price.
       Options  granted  under the 1987 Plan  expired  on the  earlier  of three
       months after termination of employment or ten years from the grant date.
- --------------------------------------------------------------------------------
                                       45
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Effective June 3, 1994, the shareholders of the Company approved the 1994
       Incentive and Nonstatutory  Option Plan (the "1994 Plan").  The 1994 Plan
       as amended,  provides for the issuance of an aggregate of 601,833  Common
       Stock options to key employees,  directors,  and certain  consultants and
       advisors of the Company.  The 1994 Plan also  provides  that the exercise
       price of Incentive  Options  shall not be less than the fair market value
       of the shares on the date of the grant.  The exercise  price per share of
       Nonstatutory  options  shall not be less than the par value of the Common
       Stock or 50% of the fair market  value of the common stock on the date of
       grant.  The 1994 Plan is administered by the  Compensation  Committee o f
       the Board of Directors.
       The committee has the authority to determine the individuals to
       whom awards will be made,  the amount of the awards,  and all other terms
       and  conditions  of the  awards.  As of  December  31,  1998,  options to
       purchase an  aggregate  of 144,389  shares of common  stock at a range of
       $2.626 - $4.125 per share, have been granted to certain key employees.

       The 1994 Plan also provides that each non-employee director automatically
       receives  options to purchase  10,500  shares of common stock at the date
       such  individual  becomes  a  non-employee  director.  Each  non-employee
       director  who is a director  on the first  business  day  following  each
       Annual  Shareholder  Meeting also receives an option to purchase a number
       of shares of common stock having a value of $15,000 as  determined by the
       fair  market  value  of the  common  stock at the  date of  grant.  As of
       December 31, 1998,  options to purchase an aggregate of 163,724 shares of
       common  stock at a range of  $2.625-$4.125  per share had been granted to
       non-employee directors.  All 1994 Plan options expire within ten years of
       the date of the grant.

       There were no stock option grants,  exercises or  forfeitures  during the
       years ended  December 31, 1998 or 1997.  At December  31, 1998,  1997 and
       1996 the Company  had 572,678  stock  options  outstanding  at a weighted
       average exercise price of $2.80 per share.

       The  Company  has  elected to apply the  disclosure  only  provisions  of
       Statement of Financial  Accounting No. 123,  Accounting  for  Stock-Based
       Compensation  ("SFAS 123") which, if fully adopted by the Company,  would
       change the  method the  Company  applies in  recognizing  the cost of the
       Plan. Adoption of the cost recognition provisions of SFAS 123 is optional
       and the Company has decided not to elect those  provisions.  As a result,
       the Company continues to apply Accounting Principles Board Opinion No. 25
       ("APB 25") and related  interpretations in accounting for the measurement
       and recognition of the Plan's cost.

       The shares exercisable for vested options and the corresponding  weighted
       average exercise price was 435,436 shares and $2.80 per share at December
       31, 1998 and 1997.

       Following is a summary of stock options outstanding at December 31, 1998.

                        Options Outstanding                 Options Exercisable
                ---------------------------------------   ----------------------
                          Weighted Avg
  Range of               Remaining Term   Weighted Avg             Weighted Avg
Exercise Price   Shares    (in Years)    Exercise Price    Shares Exercise Price
- --------------  -------  --------------  --------------   ------- --------------
$2.625--$3.375  492,980        6.20              $2.63    376,194        $2.63
$3.376--$4.125   79,698        6.66              $3.91     59,242        $3.92
                -------                                   -------
$2.625--$4.125  572,678        6.27              $2.80    435,436        $2.80
                =======                                   =======

       The Company  did not grant or reprice  any options  during the year ended
       December 31, 1998 or 1997.

       Under SFAS 123,  compensation cost is measured at the grant date based on
       the fair value of the awards and is recognized  over the service  period,
       which is usually the vesting  period.  The fair value of options  granted
       during 1998 and 1997 was  estimated  on the date of grant using the Black
       Scholes  option-pricing  model  with the  following  assumptions  used to
       calculate  fair  value of options  awarded  in 1998 and 1997:  (i)average
       dividend  yield of 0.00%;  (ii)  expected  volatility  of  83.36%;  (iii)
       expected life of five (5) years;  and (iv) estimated  risk-free  interest
       rate,  which is different  for grants  awarded on different  grant dates,
       ranging from 5.66% to 7.15%.
- --------------------------------------------------------------------------------
                                       46
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------

       The pro forma  disclosures as if the Company adopted the cost recognition
       requirements of SFAS 123 are as follows (in thousands):

                                     1998                       1997
                          -------------------------   --------------------------
                          As Reported    Pro Forma     As Reported     Pro Forma
                             -------       -------       -------        ------- 
Net loss                     $ ( 749)      $(  749)      $(4,455)       $(4,485)
Earnings per common share    $ (0.15)      $ (0.15)      $ (0.91)       $ (0.93)
       

       The  effects of applying  SFAS 123 in this  proforma  disclosure  are not
       indicative of future results.  SFAS 123 does not apply to awards prior to
       1995.  Additional  awards in  future  years  are not  anticipated  by the
       Company.

       Warrants

       Prior to the  Company's  initial  public  offering,  the  Company  issued
       warrants to the  purchasers  of the then  outstanding  Series E Preferred
       Stock  (the  "1993   Warrants").   Subject  to  adjustment   for  certain
       transactions,  the 1993 Warrants as originally  issued,  were exercisable
       for an aggregate of 353,531  shares of Common Stock at an exercise  price
       of $9.90. Because of certain specified anti-dilution provisions, the 1993
       Warrants were  exercisable  for an aggregate of 519,394  shares of Common
       Stock at a purchase price of $5.60 per share as of December 31, 1997. The
       1993 Warrants expired November 30,1998.

       In  connection  with its initial  public  offering,  the  Company  issued
       3,898,550 Redeemable Warrants (the "Redeemable Warrants"). The Redeemable
       Warrants  as  originally  issued were  exercisable  for an  aggregate  of
       3,893,550 shares of Common Stock at an exercise price of $8.25 per share.
       Because of the  anti-dilution  provisions  the  Redeemable  Warrants were
       exercisable  for an aggregate  of  5,646,798  shares of Common Stock at a
       purchase  price of $5.60 per share at December 21, 1997.  The  Redeemable
       Warrants expired December 31, 1998.

       In April 1998, in connection  with the Imatron  transaction,  the Company
       granted   ProFuturesBridge   Capital,  L.P.  ("ProFutures")  warrants  to
       purchase  1,150,000  shares of the  Company's  common  stock at $0.25 per
       share in return  for the  extension  of a loan  agreement  (See Note 14).
       During 1998 the Company  recognized  interest expense of $198,000 related
       to the value of these 1,150,000 warrants.

A summary of warrant activity is as follows:

                                                   Number of
                                                     Shares       Exercise Price
                                                 ---------     -----------------
Balance at December 31, 1996                     7,799,720     $2.00-- $3,572.27

  Warrants issued in connection with the 
    ProFutures Loan                                100,000              $1.84
  Warrants converted to Common Stock                (7,183)
                                                 ---------

Balance at December 31, 1997                     7,892,537     $1.84-- $3,572.27

  Warrants issued in connection with the
    ProFutures Loan                              1,150,000              $0.25
  Expired                                       (6,166,192)             $5.60
                                                 ---------

Balance at December 31, 1998                     2,876,345     $0.25-- $3,752.27
                                                 =========

       No compensation expense related to options and warrants was recognized by
       the Company in the accompanying  statement of operations during the years
       ended December 31, 1998 or 1997.
- --------------------------------------------------------------------------------
                                       47
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
9.     Preferred Stock

       The Company's Articles of Incorporation  authorize the board of directors
       to issue 10,000,000 shares of preferred stock from time to time in one or
       more series. The board of directors is authorized to determine,  prior to
       issuing any such series of preferred stock and without any vote or action
       by the shareholders, the rights, preferences, privileges and restrictions
       of the shares of such series,  including dividend rights,  voting rights,
       terms of  redemption,  the  provisions  of any  purchase,  retirement  or
       sinking fund to be provided for the shares of any series,  conversion and
       exchange  rights,  the preferences upon any distribution of the assets of
       the  Company,   including  in  the  event  of  voluntary  or  involuntary
       liquidation,   dissolution  or  winding  up  of  the  Company,   and  the
       preferences and relative rights among each series of preferred stock.

       Series A Preferred Stock

       In February,  March and May of 1996, the Company issued  3,075,318 shares
       of Series A 8% Cumulative  Convertible  Redeemable  Preferred Stock $1.00
       par value  ("Series A  Preferred  Stock")  and  Redeemable  Common  Stock
       Purchase  Warrants to purchase  1,537,696  shares of the Company's Common
       Stock.  The net  proceeds of the  private  placement  were  approximately
       $2,972,000.  Each share of the Series A  Preferred  Stock is  immediately
       convertible into one share of Common Stock.  Each Redeemable Common Stock
       Purchase  Warrant is  exercisable at a price of $2.00 per share of Common
       Stock.  Eight percent (8%) dividends on the Series A Preferred  Stock may
       be paid in cash or in Series A Preferred  Stock at the  discretion of the
       Company. The Series A Preferred Stock is senior to the Company's Series B
       Preferred Stock and Common Stock in liquidation.  Holders of the Series A
       Preferred  stock  may  vote on an as if  converted  basis  on any  matter
       requiring  shareholder  vote.  While  the  Series  A  Preferred  Stock is
       outstanding  or any  dividends  thereon  remain  unpaid,  no Common Stock
       dividends may be paid or declared by the Company.  The Series A Preferred
       Stock may be redeemed in whole or in part,  at the option of the Company,
       at any time  subsequent  to March 1998 at a price of $1.46 per share plus
       any  undeclared  and/or  unpaid  dividends  to the  date  of  redemption.
       Redemption  requires at least 30 days advanced notice and notice may only
       be given if the  Company's  common stock has closed above $2.00 per share
       for the twenty consecutive trading days prior to the notice.

       In conjunction with the issuance of the aforementioned Series A Preferred
       Stock,  Uro-Tech  converted amounts  receivable from the Company totaling
       $650,000  into  433,329  shares of Series A  Preferred  Stock and 216,671
       Redeemable Stock Purchase Warrants.

       Series B Preferred Stock

       In July 1996,  the Company issued 25,000 shares of Series B 8% Cumulative
       Convertible  Redeemable  Preferred  stock  $1.00  par  value  ("Series  B
       Preferred  Stock") and Common Stock  Purchase  Warrants to purchase up to
       100,000 shares of its Common stock,  par value $.01 per share. The Series
       B  Preferred   Stock  plus  Common  Stock  Purchase   Warrants  sold  for
       approximately  $50.00 per share of Series B Preferred  stock.  Subject to
       adjustment  for  certain  antidilution  events,  each  share of  Series B
       Preferred Stock is initially  convertible  into 25 shares of Common Stock
       and each Common Stock Purchase  Warrant is  exercisable  for one share of
       Common Stock at an exercise price of $2.00 per share.  Eight percent (8%)
       dividends on the Company's  Series B Preferred  Stock may be paid in cash
       or in Series B Preferred  Stock,  at the  discretion of the Company.  The
       Series B Preferred Stock is junior to the Series A Preferred  Stock,  but
       senior  to the  Company's  Common  Stock  in  liquidation.  The  Series B
       Preferred Stock has no voting rights other than those afforded by law. As
       a class, however, the holders of the Series B Preferred Stock may vote on
       matters directly affecting the Series B Preferred Stock or mergers and/or
       consolidations  of  the  Company  with  another  company.  The  Series  B
       Preferred Stock may be redeemed in whole or in part, at the option of the
       Company,  at any time subsequent to July 1998 at a price of $50 per share
       plus any  undeclared  and/or unpaid  dividends to the date of redemption.
       Redemption  requires at least 30 days advanced notice and notice may only
       be given if the  Company's  common stock has closed above $2.00 per share
       for the twenty consecutive trading days prior to the notice.
- --------------------------------------------------------------------------------
                                       48
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Dividends may not be paid or declared on the Company's Common stock while
       any unpaid dividends are outstanding on the Series B Preferred Stock. The
       Series B Preferred  Stock and the Common Stock Purchase  Warrants are not
       convertible or exercisable until such time as the Company's  shareholders
       approve an  amendment  to its Articles of  Incorporation  increasing  the
       number of the  authorized  shares of Common  Stock by at least  2,500,000
       shares.

       As of December 31, 1998,  stated dividends that are undeclared and unpaid
       on the Series A and Series B Preferred Stocks are as follows: (amounts in
       dollars)

        Series A            $ 311
        Series B              250
                         ---------

        Total               $ 561
                         =========

       The Company anticipates that such dividends,  when declared, will be paid
       in the shares of Series A and Series B Preferred Stock.

10.    Income Taxes
       The Company has incurred losses since its inception and,  therefore,  has
       not been subject to federal  income taxes.  As of December 31, 1998,  the
       Company  had net  operating  loss  ("NOL")  carryforwards  for income tax
       purposes of approximately  $43,500,000 which expire in 1999 through 2018.
       Under the  provisions  of Section 382 of the  Internal  Revenue  Code the
       greater than 50% ownership  change in the Company in connection  with the
       Imatron Transaction  severely limits the Company's ability to utilize the
       NOL  carryforward  to  reduce  future  taxable  income  and  related  tax
       liabilities.  Additionally, because United States tax laws limit the time
       during which NOL  carryforwards  may be applied  against  future  taxable
       income,  the Company  will not be able to take full  advantage of its NOL
       for  federal  income tax  purposes  should the Company  generate  taxable
       income.

       The  composition  of  deferred  tax assets and the related tax effects at
       December 31, 1998 as follows: (amounts in thousands)

       Deferred tax assets:                       
            Net operating losses                                       $14,807
            Allowance for doubtful
               accounts and notes receivable                               343
            Inventory basis difference                                     767
            Accrued liabilities and reserves                               584
            Valuation allowance                                        (16,517)
                                                              -----------------

            Total deferred tax assets                                       16

       Deferred tax liability:
            Property and equipment                                          16
                                                              -----------------

       Net deferred tax asset (liability)                                $  --
                                                              =================
- --------------------------------------------------------------------------------
                                       49
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       The  difference  between  the  income  tax  benefit  in the  accompanying
       statement  of  operations  and the amount  that would  result if the U.S.
       Federal statutory rate of 34% were applied to pre-tax loss is as follows:
       (amounts in thousands)
                                                1998              1997
                                           --------------    --------------
                                           Amount     %      Amount     %
                                           ------  ------    ------  ------
       Benefit for income tax at
          federal statutory rate           $  246    34.0    $1,514    34.0
       Non-deductible expenses                (64)   (9.0)      --      --
       Increase in valuation allowance       (182)  (25.0)   (1,514)  (34.0)
                                           ------  ------    ------  ------

       Total tax benefit                   $  --      --     $  --      --
                                           ======  ======    ======  ======

11.    401(k) Plan

       The Positron Corporation 401(k) Plan and Trust (the "Plan") covers all of
       the Company's employees who are United States citizens, at least 21 years
       of age and have  completed  at least  one  quarter  of  service  with the
       Company.  Pursuant  to the Plan,  employees  may  elect to  reduce  their
       current compensation by up to the statutorily prescribed annual limit and
       have the  amount of such  reduction  contributed  to the  Plan.  The Plan
       provides for the Company to make  contributions  in an amount equal to 25
       percent of the participant's deferral  contributions,  up to 6 percent of
       the  employee's  compensation,  as  defined  in the Plan  agreement.  The
       Company's  contribution expense was approximately  $11,490 and $36,306 in
       1998 and 1997,  respectively.  The board of  directors of the Company may
       authorize additional discretionary contributions, although, no additional
       Company contributions have been made as of December 31, 1998.



12.    Related Party Transactions

       The Company has an incentive  compensation plan for certain key employees
       and its former  Chairman.  The incentive  compensation  plan provides for
       annual  bonus  payments  based  upon  achievement  of  certain  corporate
       objectives as determined by the Company's compensation committee, subject
       to the approval of the board of directors.  To date,  the Company has not
       paid any bonuses pursuant to the incentive compensation plan.

       Pursuant  to  agreements  entered  into in  November  1993,  the  Company
       extended  loans to a current  board member and a former board  members in
       order to  provide  each of them with funds to  satisfy  their  respective
       personal  income tax liability  arising out of the  conversion of certain
       Positron Corporation  Promissory Notes into Common Stock. Such agreements
       were  entered  into by the  Company  in  connection  with  the IPO and in
       consideration of certain  concessions made by the board member and former
       board  member  concerning  the  conversion  terms under their  respective
       Notes.  Pursuant  to the  agreements,  each  of the  loans  were  made on
       substantially  the following terms: (i) limited to a principal amount not
       to exceed  $175,000,  (ii) interest  payable at a rate of six percent per
       year,  (iii) an initial  term of three years with the  principal  balance
       being due and  payable  upon the  expiration  of the term,  (iv)  limited
       recourse  against  the  borrower,  and  (v)  collateralized  by  Positron
       Corporation  Common Stock owned by the borrower.  In accordance with such
       agreements,  on April 15, 1994, the Company extended a $165,817 loan to a
       current board member and a $158,552 loan to the former board member.

       Both of the notes receivable matured in April 1997 but were not repaid by
       the debtors and, accordingly, 60,156 shares of the Company's common stock
       reverted  back to the  Company  and are  included  in  treasury  stock at
       December 31,  1998.  In  connection  with this  transaction,  the Company
       recognized bad debt expense of $309,000 during 1997.

       The Company formerly had certain consulting  agreements with its Chairman
       and a member of its board. Each agreement provided for monthly consulting
       payments of $6,667 and expired in 1998.
- --------------------------------------------------------------------------------
                                       50
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
13.    Commitments and Contingencies

       Employment Agreement with Former Employee

       On January 1, 1996, the Company entered into an employment agreement with
       Werner J.  Haas,  Ph.D.  pursuant  to which Dr.  Haas  agreed to serve as
       President  and Chief  Executive  Officer of the Company for a term of two
       years.  The  employment  agreement  provided for the payment of an annual
       base salary of  $200,000,  bonuses in an amount to be  determined  at the
       discretion of the Board of Directors of the Company, and participation in
       any employee benefit plan adopted by the Company for its employees.

       On February  18,  1997,  Dr. Haas  informed the Board of Directors of the
       Company that he  considered  his contract to have been  terminated by the
       Company  without  cause as a result of the  Company's  failure to pay the
       February 15, 1997 payroll to any of its  management  level  employees and
       specifically to him.  Additionally,  Dr. Haas resigned as a member of the
       Company's Board of Directors.  Dr. Haas has demanded that the Company pay
       him all  past  due  salary  as  well as the  nine  months  severance  pay
       specified in his  employment  agreement if his contract is  determined to
       have been terminated  without cause. The Company's  maximum exposure with
       regard to Dr. Haas' employment agreement is approximately $175,000 should
       Dr. Haas  establish that he was  terminated  without  cause.  The Company
       believes,  and has  indicated  to Dr.  Haas,  that no amounts are due him
       under his employment agreement. Accordingly, the Company's potential loss
       with regard to this matter should fall within a range up to $175,000.  As
       of December 31, 1998, the Company is unable to predict the outcome of the
       disagreement between Dr. Haas and the Company.

       Royalty Agreements

       The Company is obligated to pay royalties of 3% of the gross revenue from
       sales, uses, leases,  licensing or rentals of POSICAM systems, 1% each to
       two former  directors  of the Company and two other  unrelated  entities.
       During the years ended  December  31, 1998 and 1997 the Company  incurred
       royalties of $16,000 and $42,000, respectively.

       The  Company's  royalties  were  reduced  to  the  3%  level  based  upon
       consideration, provided to two of the payees, under consulting agreements
       and promissory notes.  However, the consulting agreements provide that if
       the  Company  defaults in its payment  obligations  thereunder,  then the
       payees would be entitled to receive  regrant of the  royalties  that they
       previously released.  In April 1998, the Company received a demand letter
       from one of the payees alleging default under his consulting agreement in
       1997 and demanding regrant of an additional 1% royalty interest. Although
       the Company has not received a demand from the second payee,  the Company
       believes that a payment  default may have occurred  under his  consulting
       agreement and that as a result thereof, he may be entitled to the regrant
       of  an  additional  0.5%  royalty  interest.   The  Company  has  accrued
       approximately $100,000 in recognition of the additional roylaties due. In
       December 1998, the Company  reached an agreement in principle with one of
       the payees regarding  payment of back royalties,  waiver of demand rights
       regarding  defaults  under a  consulting  contract  and  retention of the
       reduced royalty payment level going forward. If the parties fail to reach
       a settlement, with the other payee such payee will be entitled to receive
       an aggregate 2% royalty resulting in an increase of the Company's royalty
       obligations  from 3% to 4%. Such  increase in royalty  obligations  could
       have  a  material  adverse  effect  on  the  Company's  future  financial
       performance.

       Lease Agreements

       During 1997, the Company leased its office and manufacturing facility and
       certain  office  equipment  under  noncancelable  operating  leases  with
       unexpired  terms  ranging  from one to four  years.  In March  1998,  the
       Company,  under  severe  cash flow  constraints,  was forced to leave its
       long-term office and manufacturing facility lease and move its operations
       to a facility  with  significantly  reduced  space and a more  affordable
       lease payment. The Company entered into a series of six-month leases at a
       monthly rate of $2,671 and the Company's  current lease expires in August
       1998.  However,  the  Company  was  unable to  obtain a release  from its
       original  lease and has been  notified  by its former  landlord  that all
       delinquent  amounts due under its original  lease are currently  payable.
- --------------------------------------------------------------------------------
                                       51
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Company management believes that the landlord has leased its space to new
       tenants at favorable  lease rates and that its exposure is limited to any
       shortfall  in lease  payments  experienced  by the former  landlord.  The
       Company  believes that its maximum exposure related to the lease with its
       former landlord is $950,000,  based on the remaining  future payments due
       at the date the lease was abandoned.  However,  the Company believes that
       the amounts due the landlord  will be offset by payments from the current
       tenant and should not exceed $75,000. Accordingly, the range from $75,000
       to $950,000 and the Company has accrued approximately $250,000 related to
       this matter.  As of December  31, 1998,  the Company is unable to predict
       the outcome of this disagreement with its former landlord.      

       Rental expense for operating  leases amounted to  approximately  $110,000
       and   $256,000   for  the  years  ended   December  31,  1998  and  1997,
       respectively.  Future  minimum  lease  payments  due under  noncancelable
       operating  leases with original  lease terms of greater than one year and
       expiration  dates  subsequent  to December 31, 1998,  are  summarized  as
       follows: (amounts in thousands)

        1998                              $ 361
        1999                                421
        2000                                210
                                       --------

        Total minimum lease payments      $ 992
                                       ========

       The above lease payment schedule consists primarily of payments due under
       the Company's lease with its former landlord.

       Impact of Year 2000

       The Year 2000  issue is the result of  computer  programs  being  written
       using two digits rather than four to define the  applicable  year. Any of
       the Company's  computer  programs that have time  sensitive  software may
       recognize  a date using "00" as the year 1900  rather than the year 2000.
       This  could  result  in a system  failure  or  miscalculation  causing  a
       disruption of business activities.

       The Company has performed only a preliminary  assessment of the Year 2000
       issue using a broad overview and  management's  current  understanding of
       its   information   and   non-information   systems   and  its   informal
       understanding  of the  information  and  non-information  systems  of its
       significant  suppliers  and major  customers.  None of the details  tasks
       necessary  to  properly  assess  the Year  2000  issue  (such  as  direct
       coordination  with  vendors,   customers  and  manufacturers)  have  been
       performed.

       Based  on  a  preliminary  assessment,   the  Company  believes  that  no
       significant  modifications  to its computer  software or hardware will be
       required and that its existing  computer systems  (including  information
       systems,  non-information systems using date sensitive embedded chips and
       its POSICAMTM  systems)  will function  properly with respect to dates in
       the year 2000 and thereafter. Based upon such preliminary assessment, the
       Company  also  currently  believes  that  costs to modify  the  Company's
       existing  computer  hardware and  software  systems in regard to the Year
       2000  issue  will not be  significant  and  should  not  exceed  $10,000.
       However,  the Year  2000  issue is  extremely  complex  and the  costs to
       properly  assess its  impact on the  Company  and to  correct  associated
       problems may be significant.

       Based on the Company's  preliminary  assessment of its relationships with
       significant  suppliers and major  customers to  understand  the extent to
       which the Company is vulnerable to any failure by third parties to remedy
       their own Year 2000 issues, management believes that the Company does not
       have  significant  exposure with respect to third parties.  However,  the
       Company's preliminary  assessments indicated that the worst case scenario
       with regard to the Year 2000 issue would be delays in receiving parts and
       materials  needed for  manufacturing  and delays by  customers  in making
       payments for  fee-per-scan  and  maintenance  services.  In the Company's
       current  financial  position,   such  circumstances  could  threaten  the
       Company's continued existence.
- --------------------------------------------------------------------------------
                                       52
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Due to the Company's current severe liquidity  problems,  the Company has
       not had the financial  resources to perform a complete assessment of Year
       2000 issues,  assess the potential cost or develop any  contingency  plan
       with regard to Year 2000 issues that may arise.  The Company is unable to
       predict  at the  current  time,  when and to what  extent it may  further
       pursue its assessment of potential  Year 2000 issues and the  development
       of any contingency  plans in respect  thereof.  If the Company is able to
       obtain necessary financial  resources,  a complete assessment of the Year
       2000 issues  facing the Company  will  likely be  completed  in the third
       quarter of 1999.


       Past Due Property Taxes

       In February 1998,  certain taxing authorities filed legal actions against
       the  Company to collect  certain  past due  property  taxes,  penalty and
       interest totaling  $241,307.  In connection with such legal actions,  the
       taxing  authorities  filed liens  covering  substantially  all inventory,
       furniture, fixtures and equipment of the Company. The Company has accrued
       all past due property  taxes and is currently  operating  under a payment
       agreement with the taxing authorities.

       Dispute Regarding POSICAM(TM) System

       Arbitration  procedures  have been  initiated  against  the  Company by a
       Chinese  Company  ("Complainant")  regarding  purchase  of a  POSICAM(TM)
       system  ("System").  In September  1996 the Company  contracted  with the
       Complainant to supply a System, with Complainant providing a down payment
       of approximately  $300,000 and a commitment to provide a letter of credit
       for the remaining  purchase price,  fundable upon shipment of the System.
       The Company used the down payment to purchase the beginning inventory for
       and begin construction of the System. The Complainant failed to provide a
       letter of credit,  and the Company  was not able to complete  and deliver
       the System. The Complainant  demanded return of its deposit and initiated
       arbitration in September 1998 with the China  International  Economic and
       Trade Arbitration Commission,  Shanghai Commission.  The Company believes
       that the claims  raised are  without  merit,  and  intends to  vigorously
       defend its  interests.  It is not  possible  at  present  to predict  the
       outcome of this proceeding,  although an unfavorable  ruling could have a
       material   adverse  effect  on  the  Company's   business  and  financial
       performance.  The  Company  believes  that its  maximum  exposure in this
       matter is $300,000.

14.    Imatron Agreement

       In May  1998,  the  Company  entered  into  an  agreement  (the  "Imatron
       Transaction") with Imatron Inc. ("Imatron"), pursuant to which in January
       1999,  Imatron  acquired  a  majority   ownership  of  the  Company.   In
       conjunction  with the  Imatron  Transaction,  Imatron  has  made  working
       capital advances to the Company of $600,000 to enable the Company to meet
       a portion of its current obligations.

       Upon  consummation  of the Imatron  Transaction in January 1999,  Imatron
       acquired a majority  ownership  of the  outstanding  common  stock of the
       Company  on  a  fully-diluted   and   as-if-converted   basis(  excluding
       out-of-the-money  warrants and options determined at the time of issuance
       of the shares of Imatron)  and was issued nine  million of the  Company's
       common stock in return for a nominal cash payment in the amount of $100.

       Imatron, in addition to providing limited working capital financing,  has
       agreed to support  the  Company's  marketing  program  particularly  with
       regard to Imatron's  affiliate,  Imatron Japan,  Inc. by agreeing to make
       all reasonable  efforts to cause the placement of 10 POSICAM(TM)  systems
       over the next three years.  During 1998 the Company shipped a POSICAM(TM)
       system  to  Imatron  Japan  as the  first  delivery  under  a  three-year
       distribution  agreement  entered  into during  1997.  Imatron  Japan,  an
       affiliate of Imatron,  is a major distributor for Imatron's  Ultrafast CT
       and for the products of certain other high technology companies.  Imatron
       owns a 24 percent minority interest in Imatron Japan.
- --------------------------------------------------------------------------------
                                       53
<PAGE>
FY 1998                       POSITRON CORPORATION                   FORM 10-KSB
- --------------------------------------------------------------------------------
       Imatron has also agreed to help  facilitate the  recapitalization  of the
       Company and to support its re-entry  into the medical  imaging  market by
       using its best efforts, after the share issuance closing date, to arrange
       for  additional  third-party  equity  financing  for the Company  over an
       eighteen-month  period in an  aggregate  amount  of at least  $8,000,000.
       There can be no assurances, however, that any such sales will actually be
       consummated  or that  Imatron  will be able to  successfully  assist  the
       Company in raising additional capital.

       In connection with the Imatron Transaction,  the Company, Imatron and two
       current  lenders to the Company,  Uro-Tech and  ProFutures,  entered into
       certain  agreements  whereby (a) ProFutures  waived all past defaults and
       extended  the  maturity  of the  ProFutures  Loan in return for a $50,000
       payment and the issuance of warrants to purchase  1,150,000 shares of the
       Company's  common  stock at $0.25  per  share.  The  ProFutures  Loan was
       subsequently  repaid in November  1998; (b) Imatron agreed to subordinate
       its loan to the ProFutures  Loan, (c) Uro-Tech  agreed to subordinate its
       loan  (with a current  balance of  approximately  $792,000  plus  accrued
       interest  payable of  approximately  $272,000  at December  31,  1998) to
       Imatron's loan

       If Imatron  is  unsuccessful  in its  efforts  to raise  capital  for the
       Company,  management believes that the Company will be unable to continue
       as a going  concern and that the  Company's  assets will be seized by its
       secured creditors.


15.    Segment Information and Major Customers

       As  discussed  in Note 1, the Company  believes  that all of its material
       operations  are conducted in the  servicing and sales of medical  imaging
       devices and it currently reports as a single segment.

       During the years  ended  December  31,  1998 and 1997 the  Company  had a
       limited number of customers as follows:

                                                             1998          1997
                                                            ------        ------

         Total number of customers                              12            12
         Customers accounting for more than 10% revenues         2             2
         Percent of revenues derived from largest customer     23%           32%


16.    Supplemental Cash Flow Data

                                                              1998         1997
                                                             ------       ------
       Supplemental disclosure of cash flow information:

           Cash paid for interest                             $ 163        $ 277
                                                             ======       ======
- --------------------------------------------------------------------------------
                                       54

<TABLE> <S> <C>

<ARTICLE>                     5
<LEGEND>
The schedule  contains  summary  financial  information  extracted from Positron
Corporation's  consolidated  condensed  statements  of income  and  consolidated
condensed  balance  sheets and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<CIK>                                         0000844985
<NAME>                                        Positron Corporation
<MULTIPLIER>                                  1,000
<CURRENCY>                                    U.S. Dollars
       
<S>                                           <C>
<PERIOD-TYPE>                                 Year
<FISCAL-YEAR-END>                             Dec-31-1998
<PERIOD-START>                                Jan-01-1998
<PERIOD-END>                                  Dec-31-1998
<EXCHANGE-RATE>                               1
<CASH>                                        8
<SECURITIES>                                  0
<RECEIVABLES>                                 1110
<ALLOWANCES>                                  1011
<INVENTORY>                                   391
<CURRENT-ASSETS>                              556
<PP&E>                                        399
<DEPRECIATION>                                269
<TOTAL-ASSETS>                                686
<CURRENT-LIABILITIES>                         5657
<BONDS>                                       0
                         0
                                   1582
<COMMON>                                      52
<OTHER-SE>                                    (7273)
<TOTAL-LIABILITY-AND-EQUITY>                  686
<SALES>                                       0
<TOTAL-REVENUES>                              2008
<CGS>                                         0
<TOTAL-COSTS>                                 520
<OTHER-EXPENSES>                              13
<LOSS-PROVISION>                              0
<INTEREST-EXPENSE>                            525
<INCOME-PRETAX>                               (724)
<INCOME-TAX>                                  0
<INCOME-CONTINUING>                           (724)
<DISCONTINUED>                                0
<EXTRAORDINARY>                               0
<CHANGES>                                     0
<NET-INCOME>                                  (724)
<EPS-PRIMARY>                                 (0.14)
<EPS-DILUTED>                                 (0.14)
        

</TABLE>


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