DIANON SYSTEMS INC
10-Q, 1997-08-14
MEDICAL LABORATORIES
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                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549
                                 ---------------

                                    FORM 10-Q


   [X] QUARTERLY REPORT UNDER SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE
                                   ACT OF 1934

                  For the Quarterly Period Ended June 30, 1997

                                       OR

    [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                        For the transition period from to

                        Commission file number 000-19392

                              DIANON SYSTEMS, INC.
             (exact name of registrant as specified in its charter)

           Delaware                                        06-1128081
  (State of incorporation)                     (IRS Employer Identification No.)

   200 Watson Blvd, Stratford, CT                             06497
(Address of principal executive offices)                    (zip code)

       Registrant's telephone number, including area code: (203) 381-4000

                                 NOT APPLICABLE
              (Former name, former address and former fiscal year,
                          if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 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


The number of shares of registrant's  Common Stock, $.01 par value,  outstanding
on August 7, 1997 was 6,456,480 shares.


                      Exhibit Index on page 15 of 35 pages.


<PAGE>






                                             DIANON SYSTEMS, INC.
                                               AND SUBSIDIARIES
                                                     INDEX

<TABLE>
<CAPTION>

Part I  FINANCIAL INFORMATION                                                                     PAGE NO.
- -----------------------------                                                                     --------

Item 1.        FINANCIAL STATEMENTS

<S>            <C>                                                                                   <C>
               Consolidated Balance Sheets as of June 30, 1997 and December 31, 1996.                 3

               Consolidated Statements of Operations for the three month and six month                4
               periods ended June 30, 1997 and 1996.

               Consolidated  Statements of  Stockholders'  Equity for the twelve
               months 5 ended  December  31, 1996 and the six months  ended June
               30, 1997.

               Consolidated Statements of Cash Flows for the six months ended June 30,                6
               1997 and 1996.

               Notes to Consolidated Financial Statements.                                            7

Item 2.        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS              8-12
               OF OPERATIONS

Part II  OTHER INFORMATION

Item 6.        EXHIBITS AND REPORTS ON  FORM 8-K                                                     13

Signatures                                                                                           14

Exhibit Index                                                                                        15

</TABLE>




<PAGE>


                                               DIANON SYSTEMS, INC.
                                            CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>

                                                                              JUNE 30,      DECEMBER 31,
                                                                               1997            1996
                                                                            ------------    ------------
                                                                             (UNAUDITED)
<S>                                                                         <C>             <C>         
     ASSETS
CURRENT ASSETS:
     Cash and cash equivalents ..........................................   $ 11,229,132    $  7,488,590
     Accounts receivable, net of allowances of $1,027,705
          and $1,056,920, respectively ..................................     12,729,153      15,426,221
     Prepaid expenses and employee advances .............................      1,262,160       1,189,139
     Prepaid and refundable income taxes ................................        455,964         329,371
     Inventory ..........................................................        785,689         662,567
     Deferred income tax asset ..........................................        677,277         677,277
                                                                            ------------    ------------
Total current assets ....................................................     27,139,375      25,773,165
                                                                            ------------    ------------
PROPERTY AND EQUIPMENT, at cost
     Laboratory and office equipment ....................................     13,051,161      12,233,989
     Leasehold improvements .............................................      3,691,400       3,612,198
       Less - accumulated depreciation and amortization .................     (9,540,726)     (8,606,176)
                                                                            ------------    ------------
                                                                               7,201,835       7,240,011
                                                                            ------------    ------------

INTANGIBLE ASSETS, net of accumulated amortization of
     $3,099,436 and $2,991,286, respectively ............................        496,171         604,313
DEFERRED INCOME TAX ASSET ...............................................        458,465         458,465
OTHER ASSETS ............................................................        359,373         459,696
                                                                            ============    ============
         TOTAL ASSETS ...................................................   $ 35,655,219    $ 34,535,650
                                                                            ============    ============

         LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
     Accounts payable ...................................................   $  1,211,620    $  2,123,661
     Accrued employee bonuses, commissions and payroll ..................      1,234,039       1,504,430
     Accrued employee stock purchase plan ...............................        916,728         549,540
     Current portion of capitalized lease obligations ...................         40,910          26,107
     Current portion of note payable ....................................        170,663         650,154
     Other accrued expenses .............................................      5,221,623       2,861,268
                                                                            ------------    ------------
           Total current liabilities ....................................      8,795,583       7,715,160
                                                                            ------------    ------------
LONG-TERM PORTION OF CAPITALIZED LEASE OBLIGATIONS ......................        126,450          69,611
DEFERRED INCOME TAX LIABILITY ...........................................        201,951         201,951
                                                                            ------------    ------------
           TOTAL LIABILITIES ............................................      9,123,984       7,986,722
                                                                            ------------    ------------
STOCKHOLDERS' EQUITY
     Common  stock,  par value $.01 per  share, 20,000,000 shares
     authorized, 6,759,857 and 6,712,774 shares issued and outstanding
     at June 30, 1997 and December 31, 1996, respectively ... ..........          67,599          67,128
     Additional paid-in capital .........................................     28,221,558      27,965,560
     Accumulated earnings/(deficit) .....................................        894,234        (554,317)
     Common stock held in treasury, at cost - 319,206 and 117,196 shares
     at June 30, 1997 and December 31, 1996, respectively ...............     (2,652,156)       (929,443)
                                                                            ------------    ------------
         TOTAL STOCKHOLDERS' EQUITY .....................................     26,531,235      26,548,928
                                                                            ============    ============
         TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY .....................   $ 35,655,219    $ 34,535,650
                                                                            ============    ============
</TABLE>

                     The accompanying notes to consolidated
       financial statements are an integral part of these balance sheets.


<PAGE>
                                               DIANON SYSTEMS, INC.
                                       CONSOLIDATED STATEMENTS OF OPERATIONS
                                 FOR THE THREE MONTH AND SIX MONTH PERIODS ENDED
                                              JUNE 30, 1997 AND 1996
                                                    (UNAUDITED)

<TABLE>
<CAPTION>
                                                   THREE MONTHS ENDED          SIX MONTHS ENDED
                                                        JUNE 30,                    JUNE 30,
                                                 1997             1996       1997           1996
                                               -----------   -----------   -----------   ----------

<S>                                            <C>           <C>           <C>           <C>        
NET REVENUES ...............................   $16,056,419   $13,674,329   $31,657,574   $26,093,148

COST OF GOODS ..............................     7,882,516     6,480,922    15,755,015    12,619,810
                                               -----------   -----------   -----------   -----------
   Gross Profit ............................     8,173,903     7,193,407    15,902,559    13,473,338

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES     6,380,501     5,601,680    12,597,983    10,668,861

RESEARCH & DEVELOPMENT EXPENSES ............       460,860       775,180       968,565     1,582,081
                                               -----------   -----------   -----------   -----------

   Income from Operations ..................     1,332,542       816,547     2,336,011     1,222,396

INTEREST INCOME ............................       132,237       105,247       224,127       229,792

INTEREST EXPENSE ...........................         8,018        20,539        18,821        44,740
                                               -----------   -----------   -----------   -----------

   Income Before Provision for Income Taxes      1,456,761       901,255     2,541,317     1,407,448

PROVISION FOR INCOME TAXES .................       626,407       387,540     1,092,766       605,203
                                               -----------   -----------   -----------   -----------

   Net Income ..............................   $   830,354   $   513,715   $ 1,448,551   $   802,245
                                               ===========   ===========   ===========   ===========

Weighted Average Shares Outstanding ........     6,862,097     6,142,743     6,848,693     6,195,835
                                               -----------   -----------   -----------   -----------

Primary and Fully Diluted Earnings Per Share   $      0.12   $      0.08   $      0.21   $      0.13
                                               ===========   ===========   ===========   ===========

</TABLE>

                     The accompanying notes to consolidated
         financial statements are an integral part of these statements.


<PAGE>

                                                 DIANON SYSTEMS, INC.
                                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                               FOR THE TWELVE MONTHS ENDED DECEMBER 31, 1996 AND
                                        THE SIX MONTHS ENDED JUNE 30, 1997
                                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                Common Stock  Common Stock  
                                                       Additional               Acquired for  Acquired for  Shareholder
                                     Common Stock       Paid-In     Accumulated   Treasury,    Treasury,        Note
                                  Shares     Amount     Capital      Deficit       Shares       at Cost      Receivable       Total
                                 ---------------------------------------------------------------------------------------------------

<S>                              <C>        <C>     <C>          <C>            <C>       <C>              <C>            <C>
BALANCE, December 31, 1995 ....  6,311,451  $63,115 $ 26,609,657  ($2,724,433)   (50,000)   ($  200,000)   ($ 296,000)  $23,452,339
    Stock options exercised ...     23,621      236      107,476           --         --             --            --       107,712
    Exercise of warrants net of
      exercise costs...........    377,702    3,777    1,536,540           --    422,298      2,478,889            --     4,019,206
    Common stock acquired for
      treasury ................         --       --           --           --   (489,494)    (3,208,332)           --    (3,208,332)
    Extinguishment of share-
      holder note receivable ..         --       --     (296,000)          --         --              --      296,000            --
    Stock compensation expense -
        stock options .........         --       --        7,887           --         --              --           --         7,887
    Net Income ................         --       --           --    2,170,116         --              --           --     2,170,116
                                 ---------------------------------------------------------------------------------------------------
BALANCE, December 31, 1996 ....  6,712,774   67,128   27,965,560     (554,317)  (117,196)       (929,443)          --    26,548,928
    Stock options exercised ...     22,531      225      102,516           --         --              --           --       102,741
    Employee stock purchase
      plan options exercised ..         --       --      (57,568)          --     14,990         124,567           --        66,999
    Stock grants ..............     24,552      246      211,050           --         --              --           --       211,296
    Common stock acquired
      for treasury ............         --       --           --           --   (217,000)     (1,847,280)          --    (1,847,280)
    Net Income ................         --       --           --    1,448,551         --              --           --     1,448,551
                                 ---------------------------------------------------------------------------------------------------
BALANCE, June 30, 1997 ........  6,759,857  $67,599  $28,221,558   $  894,234   (319,206)    ($2,652,156)      $   --   $26,531,235
                                 ===================================================================================================

</TABLE>


                The accompanying notes to consolidated financial
              statements are an integral part of these statements.




<PAGE>

                              DIANON SYSTEMS, INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1997 AND 1996
                                   (UNAUDITED)
<TABLE>
<CAPTION>

                                                                                         JUNE 30,
                                                                                  1997              1996
                                                                            ----------------  --------------
        CASH FLOWS FROM OPERATING ACTIVITIES:
<S>                                                                              <C>              <C>     
           Net income                                                            $1,448,551       $288,530
        Adjustments to reconcile net income to net cash provided by (used
           in) operations -
           Non-cash charges
              Depreciation and amortization                                       1,338,546        497,088
              Stock compensation expense                                            211,296             --
              Loss on the disposal of fixed assets                                   40,914         18,845
              Investment write-down                                                      --          4,053
        Changes in other current assets and liabilities
           Decrease (increase) in accounts receivable                             2,697,068     (1,328,664)
           (Increase) decrease in prepaid expenses and employee advances           (199,614)       433,819
           (Increase) in inventory                                                 (123,122)       (41,064)
           Decrease (increase) in other assets                                       80,430         (4,443)
           Increase (decrease) in accounts payable and accrued liabilities        1,582,892       (551,319)
                                                                            ---------------   ------------
                  Net cash provided by (used in) operating activities             7,076,961       (683,155)
                                                                            ---------------   ------------
        CASH FLOWS FROM INVESTING ACTIVITIES:
           Capital expenditures                                                  (1,316,271)      (541,080)
           Proceeds from the sale of stock held for investment                        9,064         57,530
           Proceeds from the disposal of fixed assets                                    --          7,500
                                                                            ---------------   ------------
           Net cash (used in) investing activities                               (1,307,207)      (476,050)
                                                                            ---------------   ------------
        CASH FLOWS FROM FINANCING ACTIVITIES:
           Repayments of note payable                                              (479,491)      (223,939)
           Borrowings (repayments) of capitalized lease obligations                 127,819        (15,171)
           Purchase of common stock acquired for treasury                        (1,847,280)       (67,500)
           Stock options exercised                                                  102,741             --
           Employee stock purchase plan options exercised                            66,999             --
                                                                            ---------------   ------------
                  Net cash (used in) financing activities                        (2,092,212)      (306,610)
                                                                            ---------------   ------------
                  Net increase (decrease) in cash and cash equivalents            3,740,542     (1,465,815)

        CASH AND CASH EQUIVALENTS, beginning of period                            7,488,590     10,990,231
                                                                            ---------------   ------------
        CASH AND CASH EQUIVALENTS, end of period                                $11,229,132     $9,524,416
                                                                            ===============   ============

        Supplemental cash flow disclosures: 
          Cash paid during the period:
              Interest                                                              $18,999        $24,272
              Income Taxes                                                        1,157,417            458


                                     The accompanying notes to consolidated financial
                                   statements are an integral part of these statements.
</TABLE>


<PAGE>


                              DIANON SYSTEMS, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.   THE  COMPANY - The  consolidated  balance  sheet as of June 30,  1997,  the
     related  consolidated  statements of operations for the three and six month
     periods ended June 30, 1997 and 1996, the related  consolidated  statements
     of cash flow for the six  months  ended  June 30,  1997 and  1996,  and the
     related  consolidated  statements  of  stockholders'  equity for the twelve
     months ended  December 31, 1996 and the six months ended June 30, 1997 have
     been prepared by DIANON Systems, Inc. (the "Company") without audit. In the
     opinion of  management,  all  adjustments  necessary to present  fairly the
     financial  position,  results of operations and cash flows at June 30, 1997
     and 1996 have been  made.  During  the  interim  periods  reported  on, the
     accounting  policies  followed are in conformity  with  generally  accepted
     accounting  principles  and are  consistent  with those  applied for annual
     periods and  described in the  Company's  annual  report filed on Form 10-K
     with the Securities and Exchange  Commission on March 31, 1997 (the "Annual
     Report").

     Certain information and footnote disclosures normally included in financial
     statements  prepared  in  accordance  with  generally  accepted  accounting
     principles  have been  omitted.  It is  suggested  that these  consolidated
     financial  statements be read in conjunction with the financial  statements
     included in the  Company's  Annual  Report for the year ended  December 31,
     1996. The results of operations for the six months ending June 30, 1997 and
     1996 are not necessarily  indicative of the operating  results for the full
     years.

2.   DESCRIPTIVE  ANALYSIS - The descriptive  analysis contained herein compares
     the  financial  results of the first six months ended June 30 for the years
     1997 and  1996.  To  accommodate  the  comparison  of  pertinent  financial
     information  the  following  terms  will be used to denote  the  respective
     periods:

     "First Half 1997" - six months  ended June 30, 1997 "First Half 1996" - six
     months ended June 30, 1996

     "Second  Quarter  1997" - three months ended June 30, 1997 "Second  Quarter
     1996" - three months ended June 30, 1996


<PAGE>

                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                       CONDITION AND RESULTS OF OPERATIONS
                     SIX MONTHS ENDED JUNE 30, 1997 AND 1996
                                   (UNAUDITED)

RESULTS OF OPERATIONS
- ---------------------

    o     NET REVENUES

Net revenues were $31.7 million  during the First Half 1997, an increase of $5.6
million or 21% from the First Half 1996. Increased revenues were attributable to
increased  market  penetration  by  the  Company's  anatomic  pathology  testing
services.  The increase in anatomic pathology testing services in the First Half
1997 over the comparable  period of 1996 was offset to some extent by a decrease
in clinical chemistry and hospital based tissue testing services.

Net revenues were $16.1 million  during the Second  Quarter 1997, an increase of
$2.4  million or 17% from the  Second  Quarter  1996.  Increased  revenues  were
attributable to increased market penetration by the Company's anatomic pathology
testing services.

     o    COST OF GOODS

Cost of goods,  which  consists  primarily  of  salaries  and wages,  laboratory
supplies,  outside services,  logistics  (primarily shipping and handling),  and
depreciation  expense, was $15.8 million during the First Half 1997, an increase
of $3.1  million  or 25% from the First  Half  1996.  Salaries  and  wages  were
approximately  $5.3 million in the First Half 1997,  an increase of $1.3 million
or 34% from the First Half 1996.  This increase was principally due to increased
laboratory  and  physician  employment  incurred to support  increased  anatomic
pathology  testing  services.  Laboratory  supplies  decreased  to  8.8%  of net
revenues in the First Half 1997 from 10.5% in the First Half 1996. This decrease
was the result of cost  efficiencies.  Logistics  were $3.1 million in the First
Half 1997,  an  increase  of $1.2  million or 59% from the First Half 1996.  The
increase  in logistic  costs was  principally  due to  supporting  new  anatomic
pathology  testing  services.  As a percentage  of net  revenues,  cost of sales
increased to 50% during the First Half 1997 from 48% during the First Half 1996.

Cost of goods was $7.9 million  during the Second  Quarter  1997, an increase of
$1.4  million  or 22% from the  Second  Quarter  1996.  As a  percentage  of net
revenues,  cost of sales increased to 49% in the Second Quarter 1997 from 47% in
the Second Quarter 1996.

     o    GROSS PROFIT

Gross profits were $15.9 million during the First Half 1997, an increase of $2.4
million or 18% from the First Half  1996.  The  Company's  gross  profit  margin
decreased  to 50% in the First Half 1997 from 52% in the First  Half  1996.  The
decrease in gross profit margin was due to the continued  erosion of the average
unit price  reimbursed for certain clinical  chemistry  testing services and the
higher costs associated with providing anatomic pathology testing services.

Gross profits were $8.2 million  during the Second  Quarter 1997, an increase of
$980,000 or 14% from the Second Quarter 1996. The Company's  gross profit margin
decreased to 51% in the Second Quarter 1997 from 53% in the Second Quarter 1996.

The clinical  laboratory  industry,  which includes both clinical chemistry and
anatomic pathology,  has seen steady downward pressure on prices exerted by both
government  and private third party payors.  Also,  payment for services such as
those  provided  by the  Company is and likely  will  continue to be affected by
periodic reevaluations made by payors concerning which services to reimburse and
which to cease reimbursing.  A reduction in reimbursement rates, particularly by
Medicare,  has  generally  decreased  the  average  unit  price  for most of the
Company's  clinical chemistry services each year. In keeping with this trend, as
part of the Omnibus  Budget  Reconciliation  Act of 1993 ("OBRA `93"),  Congress
reduced over time the national cap on Medicare  laboratory fee  schedules.  This
national cap has been  lowered each year and is now 76% of the national  median.
Under the  provisions  of the  Budget  Reconciliation  Act  recently  adopted by
Congress,  the cap would be lowered  further to 74% beginning in 1998.  OBRA `93

<PAGE>

also eliminated the annual updates of Medicare  laboratory fee schedules for the
years 1994 and 1995.  After  updates of 3.2% in 1996 and  approximately  2.7% in
1997, the terms of the Budget  Reconciliation  Act recently adopted would freeze
fee schedule payments for the 1998 - 2002 period.

The Budget  Reconciliation  Act does  include the  addition  of coverage  for a
yearly screening pap smear for Medicare beneficiaries at high risk of developing
cervical or vaginal cancer and for beneficiaries of childbearing age who had not
had a negative  test in each of the preceding  three years,  as well as coverage
for annual  prostate cancer  screening,  including a  prostate-specific  antigen
blood test, for  beneficiaries  over age 50. Although most women of childbearing
age and men  under  age 65 are  not  Medicare  beneficiaries,  the  addition  of
Medicare  coverage  for these tests could  provide  additional  revenues for the
Company.

With respect to the Company's  tissue  testing  services  which are  reimbursed
under the  physician  fee  schedules  rather than the  Medicare  laboratory  fee
schedules, the Medicare fees for these services also generally declined with the
implementation of the resource based relative value scale ("RBRVS") system which
went  into  effect  in 1992 and was  fully  phased  in by the end of  1996.  The
Medicare RBRVS payment for each service is calculated by  multiplying  the total
relative  value units  ("RVUs")  established  for the  services by a  conversion
factor that is set by law.  The number of RVUs  assigned  to each  service is in
turn calculated by adding three separate components,  including one representing
the  relative  work  values.  Although  the  conversion  factor for  nonsurgical
services,  including pathology, is currently $33.8454, the Budget Reconciliation
Act  recently  adopted by Congress  includes a  provision  that merges the three
existing  conversion factors into one, for all types of services  provided.  The
Health Care  Financing  Administration  (the "HCFA") has  estimated  this single
factor  will be $37.13 - an  increase  of 9.7% over the 1996  conversion  factor
applicable to pathology services.

There was an overall  decrease of 5.7%  between  1996 and 1997 in payments  for
pathology  services,  plus an additional  decrease in Connecticut  due to HCFA's
reduction of the number of different  payment  localities  recognized  for RBRVS
purposes,  at the beginning of 1997, HCFA published  proposed  regulations which
recalculate a key component of the RBRVS fee schedule.  This recalculation would
modify the practice  expense RVUs to reflect resource  consumption,  rather than
the historical charge data used to establish the original practice expense RVUs.
Overall,  HCFA's  predicted  impact of  resource-based  practice expense RVUs on
Medicare  income of  pathologists  is an increase  of 1%. Of course,  the actual
impact on  Medicare  pathology  revenues  would  depend on the mix of  pathology
services  furnished.  Moreover,  under the Budget  Reconciliation  Act  recently
adopted by Congress, implementation of resource based practice expense RVUs will
not begin  until  1999,  and will be phased in over the period  1999 - 2002.  In
addition,  disclosure and evaluation of the methodology  used by HCFA to support
its proposal will be required.  In the past,  RBRVS program  implementation  and
modification has had the effect of reducing  prices,  and thus the gross profit,
of the  Company.  Overall,  the Company does not expect  projected  future RBRVS
adjustments to change this trend.

Other changes in government and other third-party payor  reimbursement which may
come about as a  consequence  of the enactment of current and future health care
reform or  deficit  reduction  measures  are  likely to  continue  the  downward
pressure on prices and make the market for  clinical  laboratory  services  more
competitive.

For example,  the Budget  Reconciliation  Act recently adopted by Congress would
revise the Medicare  program  substantially  to permit  beneficiaries  to choose
between  traditional   fee-for-service   Medicare  and  several  non-traditional
Medicare   options,   including   managed  care  plans  and   provider-sponsored
organization plans. These non-traditional Medicare plans would have considerable
discretion  in  determining  whether and how to cover and  reimburse  laboratory
services  and also have  discretion  to limit the number of labs with which they
deal.

The Budget  Reconciliation Act also includes provisions to implement competitive
bidding for certain Medicare items and services,  including laboratory services,
on a three-site  demonstration  project basis.  If later adopted on a widespread
basis,  these  changes  likely  would  have an adverse  impact on the  Company's
revenues, and thus on its gross profit.

<PAGE>

Finally,  the Budget  Reconciliation  Act recently adopted contains  measures to
establish market-oriented purchasing for Medicare, including prospective payment
systems for  outpatient  hospital  services,  home health care and nursing  home
care,  and the use of global  payments  and  flexible  purchasing.  Although the
details of these measures are yet to be finalized,  they probably would increase
pressure on pricing in the laboratory industry and may have an adverse impact on
the Company's revenues.

Because of the  uncertainties  about how the Medicare changes such as those just
described will be implemented,  the Company currently is unable to predict their
ultimate  impact on the  laboratory  industry  generally  or on the  Company  in
particular.  Reforms  may also occur at the state  level as well as the  federal
level and, in addition,  changes are occurring in the marketplace as a result of
market pressures, as the number of patients covered by some form of managed care
is increasing.  In the past, the Company has offset a substantial portion of the
impact of price  decreases  and  coverage  changes  through the  achievement  of
economies of scale, more favorable  purchase  contracts and greater  operational
efficiencies. However, if price decreases (for example arising from the proposed
Medicare  changes  discussed  above) or coverage  changes were to be rapidly and
fully  implemented,  they  would be  likely to have an  adverse  impact on gross
profits from the Company's testing services unless management had an opportunity
to mitigate such impact.

    o     SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

Selling, general and administrative expenses were $12.6 million during the First
Half 1997,  an  increase of $1.9  million or 18% from the First Half 1996.  As a
percentage  of  net  revenues,  selling,  general  and  administrative  expenses
decreased to 40% in the First Half 1997 from 41% in the First Half 1996.

Selling, general and administrative expenses were $6.4 million during the Second
Quarter 1997, an increase of $779,000 or 14% from the Second  Quarter 1996. As a
percentage  of  net  revenues,  selling,  general  and  administrative  expenses
decreased to 40% in the Second Quarter 1997 from 41% in the Second Quarter 1996.

Severance costs of approximately  $159,000 were recorded in the First Half 1997.
Severance costs of approximately $46,000 were recorded in the First Half 1996.

Investment  write-downs  of  $11,000  were  recorded  in the First  Half 1996 to
write-down the investment,  held on the Company's balance sheet, in common stock
of a publicly  traded  company  to market  value as the loss in value was deemed
other than  temporary in accordance  with the Statement of Financial  Accounting
Standard  115,   "Accounting   for  Certain   Investments  on  Debt  and  Equity
Securities".  No similar  charges  were  recorded  in the First  Half 1997.  The
Company sold its remaining shares in the first quarter of 1997.

     o    RESEARCH AND DEVELOPMENT

Research  and  development  expenses  were  $969,000  in the First Half 1997,  a
decrease of $614,000 or 39% from the First Half 1996.  Research and  development
expenses  include the costs of the review,  analysis and clinical  evaluation of
new  technologies.  This decrease in 1997 is primarily due to the  completion in
1996 of the major one-time expenditures necessary for the development of the new
anatomic  pathology  services.  During the first  quarter of 1997,  the  Company
reorganized its research and development technology activities.

Research and  development  expenses were $461,000 in the Second  Quarter 1997, a
decrease of $314,000 or 41% from the Second Quarter 1996.

     o    INTEREST INCOME

The Company's  interest  income was $224,000 for the First Half 1997, a decrease
of $6,000 or 2% from the First  Half  1996.  Interest  income for the First Half
1997 was earned on an average  investment  of $8.7  million  compared  with $9.8
million in the First  Half 1996.  Interest  income was  $132,000  for the Second
Quarter  1997,  an  increase  of $27,000 or 26% from the  Second  Quarter  1996.
Interest income for the Second Quarter 1997 was earned on an average  investment
of $9.5 million compared with $9.0 million in the Second Quarter 1996.


<PAGE>

      o    INTEREST EXPENSE

Interest  expense was $19,000 for the First Half 1997,  a decrease of $26,000 or
58% from the First Half 1996.  The  decrease in interest  expense was due to the
pay-down  of a portion of the $3.5  million  term loan  obtained in July of 1993
which bears interest at 6% per year.  Interest expense was $8,000 for the Second
Quarter 1997, a decrease of $13,000 or 61% from the Second Quarter 1996.

      o    PROVISION FOR INCOME TAXES

Provision  for income tax expense was $1.1  million for the First Half 1997,  an
increase of $488,000 or 81% from the First Half 1996. The effective tax rate was
43% during both the First Half 1997 and 1996.

       o   NET INCOME

As a result of the  foregoing,  net income was $1.4  million  for the First Half
1997,  an increase  of $646,000 or 81% from the First Half 1996.  Net income was
$830,000 during the Second Quarter 1997, an increase of $317,000 or 62% from the
Second Quarter 1996.

LIQUIDITY AND CAPITAL RESOURCES
- -------------------------------

As of June 30,  1997,  the  Company  had  total  cash and  cash  equivalents  of
approximately  $11.2  million of which  $10.2  million  was  invested  in a fund
holding U. S. Treasury securities with maturities of less than three months.

The Company had working  capital of $18.3  million at June 30, 1997  compared to
$18.1 million at December 31, 1996,  and the working  capital ratio was 3.9 to 1
at June 30, 1997 compared to 3.4 to 1 at December 31, 1996.

Domestic  trade  receivables,  net,  were $12.6  million as of June 30,  1997, a
decrease  of $2.6  million  or 17% from  December  31,  1996.  During the Second
Quarter 1997, the average number of days sales in domestic trade receivables was
approximately  75 days.  The average  number of days sales has decreased from 94
days for the month of December 1996 to 75 days for the month of June 1997.  This
decrease  was the  result  of  improved  collection  efficiencies  resulting  in
significantly  reducing  domestic  accounts  receivable from $15.2 million as of
December 31, 1996 to $12.6 million as of June 30, 1997.

Capital  expenditures during the First Half 1997 were approximately $1.3 million
compared to $541,000 for the First Half 1996.

In July 1993,  the Company  obtained a $3.5  million  term loan from a bank that
bears  interest  at 6% per year and is payable  over a 47 month  period.  During
1995,  the  term  loan  agreement  was  modified  to  revise  certain  financial
covenants,  including  those with respect to tangible net worth and debt service
coverage  requirements and limitation on certain  expenditures.  The Company has
outstanding  under  such  term loan  principal  in the  amount of  approximately
$171,000 as of June 30,  1997.  During the Second  Quarter  1997,  there were no
changes in the Company's existing debt agreements.

As of June 30, 1997,  the Company has in its treasury  319,206  shares of Common
Stock  allocated for the Company's  Employee Stock Purchase Plan at a total cost
of $2.7 million.  The Company  plans to continue to repurchase  shares under its
previously authorized buyback program.

The Company  believes that cash flows from  operations as well as available cash
and cash  equivalents  are  adequate to fund the  Company's  operations  for the
foreseeable future.


<PAGE>

RISK FACTORS; FORWARD LOOKING STATEMENTS
- ----------------------------------------

The  Management's  Discussion and Analysis  contain forward  looking  statements
regarding the  Company's  future plans,  objectives,  and expected  performance.
These  statements  are  based on  assumptions  that  the  Company  believes  are
reasonable,  but are subject to a wide range of risks and  uncertainties,  and a
number of factors could cause the Company's actual results to differ  materially
from those expressed in the forward-looking  statements referred to above. These
factors include,  among others,  the  uncertainties  in reimbursement  rates and
reimbursement  coverage of various tests sold by the Company to beneficiaries of
the Medicare  program;  the  possibility of being deemed to be not in compliance
with federal or state regulatory requirements; the uncertainties relating to the
ability of the Company to convince  physicians and/or managed care organizations
to use the Company as a provider of anatomic  pathology  testing  services;  the
ability of the Company to maintain superior quality relative to its competitors;
the ability of the Company to maintain its  hospital-based  business in light of
the  competitive  pressures  and  changes  occurring  in  hospital  health  care
delivery;  the  uncertainties  relating  to  states  erecting  barriers  to  the
performance  of  anatomic   national   laboratories;   competition   from  small
specialized  laboratories  and  well  established  local  pathologists;  and the
uncertainties which would arise if integrated delivery systems closed to outside
providers emerged as the dominant form of health care delivery.



<PAGE>

<TABLE>
<CAPTION>

PART II  OTHER INFORMATION
<S>              <C> 

Item 6            Exhibits and Reports on Form 8-K
                  --------------------------------
                  a    Exhibits

                       (10.39)    Amendment,  dated April 30, 1997, by the
                                  Registrant and Richard A. Sandberg (filed
                                  herewith).

                       (10.40)    Security Agreement dated April 30, 1997 by the
                                  Registrant and Richard A. Sandberg (filed
                                  herewith).

                       (10.41)    Secured Promissory Note dated April 30, 1997
                                  by Richard A. Sandberg in favor of the
                                  Registrant (filed herewith).

                       (11.1)     Statement regarding computation of per share
                                  earnings is not required because the relevant
                                  computation can be determined from the
                                  material contained in the Financial Statements
                                  included herein.

                        (27.1)    Financial Data Schedule (filed herewith).

                    b    Report on Form 8-K.  No reports on Form 8-K were filed
                         during the quarter ended June 30, 1997.


</TABLE>



<PAGE>


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                   DIANON Systems, Inc.


             August 13, 1997       /s/ KEVIN C. JOHNSON
                                   --------------------
                                   By:  Kevin C. Johnson
                                        President and Chief Executive Officer
                                        (Principal Executive Officer)



             August 13, 1997       /s/ DAVID R. SCHREIBER
                                   ----------------------
                                   By:  David R. Schreiber
                                        Senior Vice President, Finance and Chief
                                        Financial Officer
                                        (Principal Financial and Accounting
                                         Officer)



<PAGE>



                                  EXHIBIT INDEX
<TABLE>
<CAPTION>
                                                                                                         Page No.
<S>            <C>                                                                                           <C>
(10.39)         Amendment, dated April 30, 1997, by the Registrant and Richard A. Sandberg (filed              16
                herewith).

(10.40)         Security Agreement dated April 30, 1997 by the Registrant and Richard A. Sandberg              18
                (filed herewith).

(10.41)         Secured Promissory Note dated April 30, 1997 by Richard A. Sandberg in favor of the            33
                Registrant.(filed herewith)

(27.1)          Financial Data Schedule (filed herewith).                                                      35

</TABLE>



                                                                   Exhibit 10.39
                                                                   -------------
                             
                             AMENDMENT TO AGREEMENT

     Amendment  dated as of  April  30,  1997 to the  Agreement  made  effective
February 27, 1997 (the "Employment  Agreement") between DIANON Systems,  Inc., a
Connecticut  Corporation (the "Company"),  and Richard A. Sandberg,  residing at
233 Brushy Ridge, New Canaan, Connecticut ("Richard A. Sandberg").

     WHEREAS, the Company and Richard A. Sandberg desire to amend the Employment
Agreement.

     NOW, THEREFORE,  in consideration of the mutual covenants contained in this
Amendment, the Company and Richard A. Sandberg hereby agree as follows:

     1. Section 2 of the Employment  Agreement is hereby amended by deleting the
third  sentence  thereof  so  that as so  amended  Section  2 shall  read in its
entirety as follows:

               "2. STOCK OPTIONS

               All options to buy Company  stock held by Richard A.  Sandberg as
     of February 22, 1997,  ("Options") to the extent not previously vested will
     vest in full effective February 27, 1997, provided that Richard A. Sandberg
     does not revoke this Agreement pursuant to Section 24 of this Agreement.  A
     revocation by Richard A. Sandberg of this Agreement  pursuant to Section 24
     of this Agreement shall not affect (i) any Option (or portion thereof) that
     was not vested  pursuant  to this  Section 2 and (ii) any  Option  that was
     exercised  or  sold  by  Richard  A.  Sandberg  prior  to the  date of such
     revocation.  The options  will  otherwise be  exercisable  according to the
     terms of their initial grant(s)."

     2. The  Employment  Agreement is hereby  amended by adding a new Section 27
entitled "Secured Loan" which shall read in its entirety as follows:

               "27. SECURED LOAN

               Immediately  upon  execution  hereof,  the Company  shall loan to
     Richard A. Sandberg  Three Hundred  Thousand  Dollars  ($300,000.00)  ("the
     Loan") and in exchange  therefore  Richard A.  Sandberg  shall  execute and
     deliver to the Company  the  Secured  Promissory  Note  attached  hereto as
     Exhibit A and the Security  Agreement  attached hereto as Exhibit B. As set
     forth in the Secured  Promissory  Note, the Loan shall be repayable in full
     in two years and shall bear interest at the rate of 9.5% per annum, payable
     annually,  and shall be secured by the Options,  the shares of stock of the
     Company issuable upon exercise of the Options and 30,000 shares of stock of
     Milkhaus Laboratory, Inc. ("Milkhaus") owned by Richard A. Sandberg. As set
     forth in the Security  Agreement,  Richard A. Sandberg shall have the right

<PAGE>



     to  exercise  the  Options  and to sell from time to time any or all of the
     shares of the Company or Milkhaus  held as  collateral  under the  Security
     Agreement  provided  that 60% of the gain  realized by Richard A.  Sandberg
     from any such sale is paid to the  Company  in  satisfaction  of Richard A.
     Sandberg's obligations under the Secured Promissory Note."

     3. Except as amended  hereby,  the Employment  Agreement  shall continue in
full force and effect in accordance with its terms.

                                                  DIANON SYSTEMS, INC.

                                                  By /S/  KEVIN JOHNSON
                                                     ------------------
                                                     Kevin Johnson


                                                  /S/  RICHARD A. SANDBERG
                                                  ------------------------
                                                  Richard A. Sandberg



                                                                   Exhibit 10.40
                                                                   -------------

          SECURITY  AGREEMENT  dated April 30, 1997 made by Richard A.  Sandberg
(the  "Pledgor") in favor of DIANON  Systems,  Inc. (the "Secured  Party" or the
"Company").

                              W I T N E S S E T H:

          WHEREAS the Pledgor is the obligor  under a Secured  Promissory  Note,
dated the date hereof,  payable to the Secured Party in the principal  amount of
$300,000 (the "Secured Promissory Note");

          WHEREAS the Pledgor is the holder of options  ("Options")  to purchase
common stock,  par value $.01 per share  ("Common  Stock") of the Company and is
the owner of 30,000  shares of common  stock of Milkhaus  Laboratories,  Inc., a
Delaware corporation ("Milkhaus"); and

          WHEREAS in order to secure the  obligations  of the Pledgor  under the
Secured  Promissory  Note the Secured  Party has  requested  and the Pledgor has
agreed to execute and deliver this Security Agreement.

          NOW,  THEREFORE,  in  consideration of the premises and other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged,  the Pledgor  hereby agrees with the Secured Party as follows:  1.
SECURITY INTEREST. As security for the Obligations (as hereinafter defined), the
Pledgor  pledges,  assigns,  sets over and  delivers to the Secured  Party,  and
grants to the  Secured  Party a  continuing  security  interest  in,  all of the
Pledgor's right,  title and interest  (whether now existing or hereafter created
or  acquired  by the  Pledgor)  in (a) the  Options  held by  Pledgor  listed on
Schedule I, including all rights arising under the  agreements  evidencing  such
Options,  (b) all  shares of Common  Stock  issuable  upon the  exercise  of the
Options  and  the  certificates  representing  all  such  shares  (the  "Company
Shares"),  (c) 30,000  shares of common stock of Milkhaus  and the  certificates
representing all such shares listed on Schedule I hereto (the "Milkhaus  Shares"
and,  together with the Company  Shares,  the "Pledged  Stock"),  (d) subject to
Section 8, all payments of principal or interest,  dividends,  cash, instruments
and  other  property  from  time  to  time  received,  receivable  or  otherwise
distributed,  in  respect  of, in  exchange  for or upon the  conversion  of the
securities  referred  to in clauses  (b) and (c),  (e) subject to Section 8, all
rights and  privileges of the Pledgor with respect to the  securities  and other
property  referred to in clauses (b), (c) and (d) above, and (f) all proceeds of
any of the  foregoing  (the items  referred  to in clauses (a) through (f) above
being  collectively  referred  to as the  "Collateral").  Upon  delivery  to the
Secured Party,  (a) any stock  certificates or other securities now or hereafter
included in the Collateral  (the "Pledged  Securities")  shall be accompanied by
stock  powers  duly  executed  in  blank  or  other   instruments   of  transfer
satisfactory to the Secured Party and by such other instruments and documents as
the Secured Party may reasonably  request and (b) all other property  comprising
part of the Collateral shall be accompanied by proper  instruments of assignment

<PAGE>


duly  executed by the Pledgor and such other  instruments  or  documents  as the
Secured Party may reasonably request.  Each delivery of Pledged Securities shall
be accompanied by a schedule  describing  the  securities  theretofore  and then
being pledged  hereunder,  which schedule shall be attached hereto as Schedule I
and made a part hereof.  Each  schedule so delivered  shall  supersede any prior
schedules  so  delivered.  If  Borrower  delivers  a  certificate  (the  "Excess
Certificate")  for more  than  30,000  Milkhaus  Shares  to the  Secured  Party,
Borrower  shall have the right at any time to deliver or cause to be delivered a
certificate for 30,000 Milkhaus Shares in exchange for such Excess  Certificate,
together  with stock  powers  duly  executed  in blank or other  instruments  of
transfer satisfactory to the Secured Party.

          2. DELIVERY OF THE COLLATERAL.  The Pledgor agrees promptly to deliver
or cause to be  delivered to the Secured  Party any and all Pledged  Securities,
and any and all certificates or other instruments or documents  representing the
Collateral, including any Company shares received upon the exercise of Options.

          3. OBLIGATIONS SECURED. The security interest granted by this Security
Agreement is to secure the payment and performance of the Pledgor's  obligations
to the Secured  Party under this Security  Agreement and the Secured  Promissory
Note,  whether  for  principal,  interest,  fees or other  amounts,  secured  or
unsecured,  absolute  or  contingent,  due or to become  due,  now  existing  or
hereafter  arising,  and whether or not evidenced by any instrument  (all of the
foregoing collectively, the "Obligations").

          4. UNCONDITIONAL  GRANT OF SECURITY  INTEREST.  (a) The Pledgor agrees
that this  Security  Agreement  shall be binding  upon the  Pledgor and that the
grant of the  security  interest  in the  Collateral  shall be  irrevocable  and
unconditional,  irrespective of the validity,  legality or enforceability of the
Obligations,  the  absence  of any  action to  enforce  the same,  any waiver or
consent by the Secured  Party with  respect to any  provisions  thereof,  or any
action to enforce the same or any other  similar  circumstances.  The  Pledgor's
obligations  and  liabilities  hereunder  shall not be conditioned or contingent
upon the Secured  Party's pursuit at any time of any right or remedy against any
other  person or entity  that may be or become  liable in  respect of all or any
part of the Obligations or against any collateral  security or guaranty therefor
or right of offset with respect  thereto.  The Pledgor hereby waives  diligence,
presentment,  demand of  payment,  filing of claims with a court in the event of
the Pledgor's merger or bankruptcy,  protest or notice with respect to any notes
evidencing the Obligations and all demands  whatsoever.  This Security Agreement
shall remain in full force and effect and be binding in  accordance  with and to
the extent of its terms upon the Pledgor until the Obligations have been paid in
full.

               (b) The Pledgor  agrees that without  notice to or further assent
by the  Pledgor,  the  liability  of any  other  party  for or  upon  any of the
Obligations  may, from time to time, in whole or in part, be renewed,  extended,
modified,  accelerated,  compromised  or released  by the  Secured  Party as the
Secured Party may deem advisable, and that any other collateral or liens for any
of the  Obligations  may,  from time to time, in whole or in part, be exchanged,
sold or  surrendered  by the  Secured  Party,  as the  Secured  Party  may  deem
advisable,  all without  impairing,  abridging,  affecting or  diminishing  this
Security  Agreement or the Secured  Party's rights  hereunder or with respect to
the Collateral.

<PAGE>


          5. RIGHT TO SELL  COLLATERAL.  Unless  and until a default  shall have
occurred,  notwithstanding  any  other  provision  of this  Security  Agreement,
Pledgor shall have the right (i) to exercise any or all of the Options from time
to time  subject to the  Secured  Party's  continuing  first  priority  security
interest in the shares of Common Stock  issuable upon the exercise of the Option
and (ii) to sell any or all of the Pledged  Stock,  provided that (A) 60% of the
gain  realized  by Pledgor  upon any such sale  shall be payable to the  Secured
Party in satisfaction of Pledgor's obligations under the Secured Promissory Note
pursuant to  arrangements  satisfactory  to the Secured Party and (B) if at such
time  Pledgor has any  indebtedness  outstanding  to the Company  other than the
Obligations,  any remaining  balance of the proceeds after application of clause
(A) shall be applied to repay such indebtedness.

          6. REPRESENTATIONS, COVENANTS AND WARRANTIES. The Pledgor hereby makes
the following representations,  covenants and warranties,  which shall be deemed
to be repeated and confirmed  upon the creation or acquisition by the Pledgor of
each item of Collateral and upon the creation of any Obligation:

               (a) This Security  Agreement has been duly executed and delivered
by the  Pledgor  and is his legal,  valid and  binding  obligation,  enforceable
against  him  in  accordance  with  its  terms,   subject  only  to  bankruptcy,
insolvency,  reorganization,  moratorium  or similar  laws now or  hereafter  in
effect  relating  to or  affecting  the  enforceability  of rights of  creditors
generally and to general equitable principles that may limit the right to obtain
equitable  remedies.  By virtue of the  execution and delivery by the Pledgor of
this Security Agreement, when the Pledged Securities, certificates,  instruments
or other  documents  representing  or evidencing the Collateral are delivered to
the Secured Party in accordance with this Security Agreement,  the Secured Party
will obtain a valid and  perfected  first lien on and security  interest in such
Collateral,  enforceable  against the Pledgor and all third parties and superior
in right to all  other  security  interests,  liens,  encumbrances  or  charges,
existing or future.

               (b) On the date  hereof  and at any time  during the term of this
Security Agreement during which a security interest in the Secured Party's favor
in the Collateral exists, the Pledgor will be the direct owner, beneficially and
of record, of the Collateral and will have good right to grant the Secured Party
a  security  interest  therein;  the  Pledgor  will  perform  all acts and deeds
possible to assure that all  documents and  agreements  held by the Pledgor with
respect to the Collateral will be true and correct and in all respects what they
purport  to be;  subject  to  Section  8, the  Pledgor  will  cause  any and all
Collateral,  whether for value paid by the Pledgor or otherwise, to be forthwith
deposited  with the  Secured  Party  and  pledged  or  assigned  hereunder;  all
signatures  and  endorsements  that  appear  thereon  will be  genuine  and such
signatories  and endorsers will have the full capacity to contract;  none of the
transactions  underlying or giving rise to the  Collateral  nor any operation or
use of any of the Collateral will violate any applicable state or federal law or
regulation;  and all  documents  relating  to the  Collateral  will  be  legally
sufficient  under such laws and regulations  and will be legally  enforceable in
accordance with their terms. The Pledgor will defend the Collateral  against all
claims  and  demands  of all  other  parties  claiming  the same or an  interest
therein,  and none of the Collateral will be: (i) sold,  assigned or transferred
to any person or entity other than the Secured Party or (ii) in any way pledged,
mortgaged or otherwise encumbered except to the Secured Party or as permitted in

<PAGE>


accordance  with  Section 5 hereof.  All of the  Milkhaus  Shares have been duly
authorized and validly issued and are fully paid and non-assessable.

               (c) There is no litigation  pending or threatened in any court or
jurisdiction,  the outcome of which would affect the  Pledgor's  interest in the
Collateral in a materially adverse manner.

               (d) There are no setoffs,  counterclaims or defenses with respect
to the  Collateral or the right of the Pledgor to receive the  Collateral and no
agreement has been made with any other person or party under which any deduction
or discount may be claimed with respect to the  Collateral and the Pledgor knows
of no fact which would prohibit or prevent the Pledgor from receiving all of the
Collateral.

               (e) The Pledgor will,  promptly upon learning thereof,  report to
the Secured Party: (i) any material, adverse change in the information contained
herein  relating  to the  Pledgor  or the  Collateral;  (ii) the  details of any
material  adverse claim or litigation  affecting the Pledgor or the  Collateral;
and (iii) any material loss of or damage to the  Collateral or any other matters
affecting the value, enforceability or collectibility of any of the Collateral.

               (f) The Pledgor will take any and all steps and will observe such
formalities  as the  Secured  Party  may  request,  all in order to  create  and
maintain  the  Secured  Party's  valid  security  interest in any and all of the
Collateral.  The Pledgor agrees to execute such financing  statements,  security
agreements  or other  instruments  with respect to any of the  Collateral as the
Secured Party may request and authorize the Secured Party to execute and file at
any time such financing  statements without the Pledgor's signature and, if upon
request the Pledgor fails to do so, to execute such security agreements or other
instruments  on its  behalf.  The Secured  Party may file a  photocopy  or other
reproduction of this Security Agreement as a financing statement.

               (g) The Pledgor  will pay all costs  necessary  to  preserve  the
Collateral, including (but not limited to) all taxes, rates, levies, assessments
and other  charges of every  nature  that may be  lawfully  levied,  assessed or
imposed  against or in respect of the Pledgor or the Collateral as and when they
become due and payable.

               (h) The Pledgor will give the Secured Party  immediate  notice of
(i) any default under this Security Agreement or the Secured Promissory Note, or
(ii) any action or  proceeding  to which the Pledgor is a party or affecting the
Pledgor an  adverse  determination  of which  would  affect  the  Pledgor or the
Collateral in a materially adverse manner.

               (i)  Neither  the  making  of the loan  pursuant  to the  Secured
Promissory  Note  nor  the  use of  the  proceeds  thereof  will  violate  or be
inconsistent  with the provisions of Regulation G or X of the Board of Governors
of the Federal  Reserve  System and no part of the proceeds of such loan will be
used to  purchase  or carry  any  "margin  stock"  within  the  meaning  of such
Regulation G or to extend  credit for the purpose of  purchasing or carrying any
such margin stock.

<PAGE>


          7.  REGISTRATION  IN NOMINEE  NAME.  The Secured  Party shall have the
right (in its sole and absolute  discretion)  to hold the Pledged  Securities in
its own name as pledgee, the name of its nominee (as pledgee or as sub-agent) or
the  name of the  Pledgor,  endorsed  or  assigned  in  blank or in favor of the
Secured Party. The Pledgor will promptly give to the Secured Party copies of any
notices  or  other  communications  received  by  it  with  respect  to  Pledged
Securities registered in the name of the Pledgor. The Secured Party shall at all
times  have  the  right  to  exchange  the  certificates   representing  Pledged
Securities for certificates of smaller or larger  denominations  for any purpose
consistent with this Security Agreement.

          8. VOTING  RIGHTS AND  DIVIDENDS,  ETC. (a) Unless and until a default
shall have occurred:

               (i) The Pledgor  shall be entitled to exercise any and all voting
and/or  other  consensual  rights and  powers  inuring to an owner of any of the
Pledged Securities or any part thereof for any purpose consistent with the terms
of this Security Agreement and the Secured Promissory Note;  PROVIDED,  HOWEVER,
that the Pledgor  will not be entitled to exercise  any such right if the result
thereof could  materially and adversely affect the rights inuring to a holder of
the Pledged  Securities  or the rights and  remedies of the Secured  Party under
this  Security  Agreement or the Secured  Promissory  Note or the ability of the
Secured Party to exercise the same.

               (ii) The Pledgor  shall be entitled to receive and retain any and
all cash dividends, interest and principal paid on the Pledged Securities to the
extent and only to the extent that such cash  dividends,  interest and principal
are permitted by, and otherwise paid in accordance with,  applicable laws. Other
than pursuant to the first sentence of this subparagraph, all noncash dividends,
interest  and  principal,  and all  dividends,  interest and  principal  paid or
payable in cash or otherwise in connection  with a partial or total  liquidation
or dissolution,  return of capital,  capital surplus or paid-in surplus, and all
other  distributions  made on or in respect of the Pledged  Securities,  whether
paid or payable in cash or  otherwise,  whether  resulting  from a  subdivision,
combination or  reclassification  of the outstanding capital stock of the issuer
of any Pledged  Securities or received in exchange for Pledged Securities or any
part  thereof,  or  in  redemption  thereof,  or  as a  result  of  any  merger,
consolidation,  acquisition or other exchange of assets to which such issuer may
be a party or  otherwise,  shall be and become part of the  Collateral,  and, if
received by the Pledgor,  shall not be commingled by the Pledgor with any of its
other funds or property but shall be held separate and apart therefrom, shall be
held in trust for the  benefit  of the  Secured  Party  and  shall be  forthwith
delivered  to the  Secured  Party  in the same  form as so  received  (with  any
necessary endorsement).

               (b) Upon the  occurrence of a default,  all rights of the Pledgor
to dividends,  interest and principal  that the Pledgor is authorized to receive
pursuant to  paragraph  (a)(ii)  above shall  cease,  and all such rights  shall
thereupon  become  vested in the  Secured  Party,  which shall have the sole and
exclusive right and authority to receive and retain such dividend,  interest and
principal  payments.  All  dividends,  interest  and  principal  received by the
Pledgor  contrary to the provisions of this Section 8 shall be held in trust for
the benefit of the Secured  Party,  shall be segregated  from other  property or
funds of the Pledgor and shall be forthwith  delivered  to the Secured  Party in
the same form as so received (with any necessary endorsement). Any and all money

<PAGE>


and other property paid over to or received by the Secured Party pursuant to the
provisions  of this  paragraph  (b)  shall be  applied  in  accordance  with the
provisions of Section 12.

               (c) Upon the  occurrence of a default,  all rights of the Pledgor
to  exercise  the voting and  consensual  rights and powers  that the Pledgor is
entitled to exercise pursuant to paragraph (a)(i) of this Section 8 shall cease,
and all such rights shall  thereupon  become vested in the Secured Party,  which
shall have the sole and  exclusive  right and  authority to exercise such voting
and consensual rights and powers.

          9. DEFAULT. If any default in the payment or performance of any of the
Obligations occurs and is continuing,  if any representation or warranty made in
this Security  Agreement proves to have been false or misleading in any material
respect when made or deemed made, if the Pledgor  defaults in the due observance
or performance of any other  covenant,  condition or agreement to be observed or
performed  pursuant  to the  terms of this  Security  Agreement  or the  Secured
Promissory  Note  or if  the  Pledgor  becomes  involved  as the  debtor  in any
bankruptcy or insolvency proceedings,  then the Pledgor will be in default under
this Security Agreement.

          10. RIGHTS AND REMEDIES UPON DEFAULT.  (a) Upon the Pledgor's  default
under this Security  Agreement,  and at any time  thereafter,  the Secured Party
may, without  presentment,  demand,  protest or notice of any kind, all of which
are  hereby  expressly  waived,  declare  any or all  of the  Obligations  to be
immediately due and payable.

               (b) The Pledgor hereby  authorizes and empowers the Secured Party
as the  attorney-in-fact  of the  Pledgor,  at any time after  default,  with or
without  notice to the Pledgor,  for the use and benefit of the Secured Party to
take all  steps  which  the  Secured  Party  shall in its sole  discretion  deem
necessary  to  enforce  the  rights  of the  Pledgor  in and to the  Collateral,
including, but not limited to, the commencement and prosecution of any action or
proceeding  which the Secured Party in its sole  discretion  deems  necessary or
desirable to protect or realize upon the  Collateral.  In addition,  the Pledgor
hereby authorizes and empowers the Secured Party as the  attorney-in-fact of the
Pledgor,  at any time after a default, to endorse in the name of the Pledgor any
checks,  drafts or other  orders  payable  to the  Pledgor  with  respect to the
Collateral  for  application  against  the  Obligations.  The  power-of-attorney
granted to the Secured Party pursuant  hereto shall be deemed to be coupled with
an interest  and shall be  irrevocable  until the Secured  Party shall have been
fully and indefeasibly paid.

               (c) In  addition  to any rights and  remedies  contained  in this
Security  Agreement or now or hereafter  granted under applicable law and not by
way of limitation of any such rights and remedies,  the Secured Party shall have
all the rights and remedies of a secured party under the Uniform Commercial Code
as enacted in any  applicable  jurisdiction.  The  Secured  Party may take legal
proceedings for the appointment of a receiver or receivers (to which the Secured
Party  shall be  entitled  as a  matter  of  right)  to take  possession  of the
Collateral pending the sale thereof pursuant either to the power of sale granted
by this  Security  Agreement  or to a  judgment,  order  or  decree  made in any

<PAGE>


judicial  proceeding for the  foreclosure  or involving the  enforcement of this
Security Agreement.

               (d) The  Pledgor  agrees  that all of the  foregoing  rights  and
actions  specified  in  paragraphs  (a),  (b) and (c) of this  Section 10 may be
executed or effected without demand, advertisement or notice (except as required
by law),  all of which (to the extent  permitted  by law) are  hereby  expressly
waived.  The  Secured  Party  shall  not be  obligated  to do  any  of the  acts
authorized in this Security Agreement, but if the Secured Party elects to do any
such act, the Secured Party will not be  responsible  to the Pledgor  except for
the Secured Party's own gross negligence or willful misconduct.

               (e) The Secured Party shall have the right in its sole discretion
to determine which rights, security,  liens,  guarantees,  security interests or
remedies the Secured Party will retain, pursue, release, subordinate,  modify or
take any other action with respect to, without in any way modifying or affecting
any other of them or any of its rights under this Security Agreement. Any of the
Pledgor's  moneys,  deposits,  balances or other property that may come into the
Secured  Party's  possession  at any  time  or in  any  manner  may in its  sole
discretion  be  retained  by  the  Secured  Party  and  applied  to  any  of the
Obligations.  Notwithstanding  any other rights the Secured Party may have under
applicable  law and under this  Security  Agreement,  the Pledgor  agrees  that,
should it at any time be in default under this Security  Agreement,  the Secured
Party  shall have the right to apply  (including,  but not limited to, by way of
setoff) any of the  Pledgor's  property held by the Secured Party to a reduction
of the  Obligations.  The Secured Party shall be deemed to have  exercised  such
right of setoff  immediately  at the time of making its  decision  to do so even
though  any charge for such  setoff is made or  entered on the  Secured  Party's
records subsequent to such time.

          11. SALE OF COLLATERAL.  Upon the occurrence of a default, the Secured
Party may sell the Collateral, or any part thereof, at public or private sale or
at any broker's board or on any securities  exchange,  for cash,  upon credit or
for future delivery as the Secured Party shall deem  appropriate.  Upon any sale
of any of the  Collateral,  whether  made  under the power of sale given by this
Security Agreement or under judgment, order or decree in any judicial proceeding
for foreclosure or involving the enforcement of this Security Agreement: (a) the
Secured  Party shall be authorized at any such sale (if it deems it advisable to
do so) to restrict the  prospective  bidders or  purchasers  to persons who will
represent  and  agree  that they are  purchasing  the  Collateral  for their own
account for investment and not with a view to the  distribution or sale thereof,
and upon consummation of any such sale the Secured Party shall have the right to
assign,  transfer  and  deliver  to the  purchaser  or  purchasers  thereof  the
Collateral so sold and may bid for the property being sold and, upon  compliance
with the  terms of sale,  may hold,  retain  and  possess  and  dispose  of such
property in its own absolute right without  further  accountability  and may, in
paying the purchase  price for such property,  deliver any notes  evidencing the
Obligations  or claims  for  interest  thereon in lieu of cash in payment of the
amount equal to the unpaid amount of such notes or claims; (b) the Secured Party
may make and deliver to the purchaser or purchasers a good and sufficient  deed,
bill of sale and instrument of assignment and transfer of the property sold; (c)
the  Secured  Party is  irrevocably  appointed  the  Pledgor's  true and  lawful

<PAGE>


attorney-in-fact  in the Pledgor's  name and stead to make all necessary  deeds,
bills of sale and  instruments  of assignment  and transfer of the property thus
sold and for such other purposes as are necessary or desirable to effectuate the
provisions  of this Security  Agreement,  and for that purpose the Secured Party
may execute and deliver all necessary  deeds,  bills of sale and  instruments of
assignment and transfer, and may substitute one or more persons or entities with
like power,  and the Pledgor  ratifies and confirms all that the Pledgor's  said
attorney, or such substitute or substitutes, shall lawfully do by virtue of this
appointment,  but if so requested by the Secured  Party or by any  purchaser the
Pledgor  will ratify and confirm  any such sale or  transfer  by  executing  and
delivering  to the Secured Party or to such  purchaser all such deeds,  bills of
sale,  instruments  of assignment and transfer and releases as may be designated
in any such request; (d) all of the Pledgor's right, title, interest,  claim and
demand  whatsoever,  either  at law or in  equity  or  otherwise,  in and to the
property so sold shall be divested,  such sale shall be a perpetual  bar both at
law and in equity  against the Pledgor,  its  successors and assigns and against
any and all persons or entities  claiming or who may claim the property  sold or
any part  thereof  from,  through  or under the  Pledgor  or its  successors  or
assigns;  (e) the Pledgor  will  terminate  and cease  forthwith  all use of the
property so sold;  (f) the Secured  Party's  receipt or a receipt of the officer
making such sale shall be a sufficient  discharge to the purchaser or purchasers
at such sale for the purchase money, and such purchaser or purchasers,  and such
purchaser's or purchasers' assigns or personal representatives, shall not, after
paying such purchase  money and receiving  such receipt,  be obligated to see to
the application of such purchase money or be in any way answerable for any loss,
misapplication  or  non-application  thereof;  and (g) to the  extent  that  the
Pledgor  may  lawfully  do so, the  Pledgor  agrees that it will not at any time
insist upon or plead, or in any manner  whatsoever  claim or take the benefit or
advantage of, any appraisement,  valuation, stay, extension or redemption law or
any law  permitting  it to direct the order in which the  Collateral or any part
thereof shall be sold,  now or at any time  hereafter in force,  that may delay,
prevent or otherwise  affect the  performance  or  enforcement  of this Security
Agreement or the  Obligations,  and the Pledgor  expressly waives all benefit or
advantage of any such law and agrees that the Pledgor will not hinder,  delay or
impede the  execution of any power  granted or delegated to the Secured Party in
this Security Agreement,  but will suffer and permit the execution of every such
power  as  though  no such  law  were in  force.  In the  event  of any  sale of
Collateral,  the Secured Party shall,  at least ten days before such sale,  give
the  Pledgor  written  notice of the Secured  Party's  intention  to sell.  Such
notice,  in the case of a public  sale,  shall state the time and place for such
sale and, in the case of a sale at a broker's board or on a securities exchange,
shall  state the board or  exchange at which such sale is to be made and the day
on which the Collateral,  or portion thereof,  will first be offered for sale at
such board or exchange. Any such public sale shall be held at such time or times
within ordinary  business hours and at such place or places as the Secured Party
may fix and state in the notice of such sale. At any such sale, the  Collateral,
or  portion  thereof,  to be sold  may be sold in one lot as an  entirety  or in
separate parcels, as the Secured Party may (in its sole and absolute discretion)
determine.  The  Secured  Party shall not be  obligated  to make any sale of any
Collateral  if it shall  determine  not to do so,  regardless  of the fact  that
notice of sale of such Collateral  shall have been given. The Secured Party may,
without notice or  publication,  adjourn any public or private sale or cause the
same to be  adjourned  from time to time by  announcement  at the time and place
fixed for sale, and such sale may,  without further notice,  be made at the time
and place to which the same was so adjourned.

<PAGE>


          12.  APPLICATION  OF  MONEYS.  Except as  otherwise  provided  in this
Security Agreement, all moneys the Secured Party receives in accordance with the
provisions of this Security  Agreement shall be applied in the following manner:
First, to the payment of all costs and expenses  incurred in connection with the
administration and enforcement of, or the preservation of any rights under, this
Security  Agreement and the  realization on the Collateral  (including,  but not
limited to, the reasonable fees and disbursements of the Secured Party's counsel
and agents);  and SECOND,  to the payment of all other Obligations in such order
as the Secured  Party may  choose.  Any  surplus  shall be promptly  remitted to
Pledgor except as otherwise required by law.

          13. WAIVERS,  AMENDMENTS,  REQUIRED NOTICES. The Pledgor waives notice
of  acceptance  of  this  Security  Agreement,  notice  of  nonpayment,  demand,
presentment, protest and notice thereof with respect to any and all instruments,
notice of Collateral received or delivered or any other action taken in reliance
on this Security Agreement and all other demands and notices of any description,
except such as are expressly provided for in this Security Agreement or which by
applicable  law may not be waived  on the date of this  Security  Agreement.  No
failure on the Secured Party's part to exercise, and no delay in exercising, any
right,  power or remedy under this Security  Agreement shall operate as a waiver
thereof or of any  default by us under this  Security  Agreement,  nor shall any
single or partial  exercise by the Secured  Party of any right,  power or remedy
under this Security  Agreement  preclude any other or future exercise thereof or
the exercise of any other right,  power or remedy.  No amendment or modification
of this  Security  Agreement  nor any waiver of any  provision of this  Security
Agreement or consent to any departure by us therefrom shall be effective  unless
it is in writing  and signed by the  Secured  Party and then any such  waiver or
consent shall be effective only in the specific instance and for the purpose for
which given. No notice to or demand on the Pledgor shall, of itself, entitle the
Pledgor  to  any  other  or  further  notice  or  demand  in  similar  or  other
circumstances.  Except as  otherwise  provided in this  Security  Agreement,  if
notice,  whether  before or after any default by the Pledgor under this Security
Agreement has  occurred,  is required by law to be given by the Secured Party to
the  Pledgor,  the  Pledgor  agrees that five days'  notice  given in the manner
provided in Section 17 will be reasonable notice.

          14. SECURITIES ACT, ETC. A question may arise under the Securities Act
of 1933, as now or hereafter in effect, or any similar statute hereafter enacted
analogous in purpose or effect  (such Act and any such  similar  statute as from
time to time in effect being called the "Federal  Securities Laws") with respect
to any disposition of the Pledged Securities  permitted  hereunder.  The Pledgor
understands that compliance with the Federal Securities Laws might very strictly
limit the course of conduct of the Secured  Party if the  Secured  Party were to
attempt to dispose of all or any part of the Pledged Securities,  and might also
limit the extent to which or the manner in which any  subsequent  transferee  of
any Pledged Securities could dispose of the same. Similarly,  there may be other
legal restrictions or limitations  affecting the Secured Party in any attempt to
dispose of all or part of the Pledged  Securities  under  applicable Blue Sky or
other state securities laws or similar laws analogous in purpose or effect.  The
Pledgor  recognizes  that in  light of such  restrictions  and  limitations  the
Secured Party may, with respect to any sale of the Pledged Securities, limit the
purchasers to those who will agree,  among other things, to acquire such Pledged
Securities  for their own account,  for  investment,  and not with a view to the
distribution  or resale  thereof.  The Pledgor  acknowledges  and agrees that in

<PAGE>


light of such  restrictions and limitations,  the Secured Party, in its sole and
absolute  discretion,  (a) may  proceed  to make  such a sale  whether  or not a
registration statement for the purpose of registering such Pledged Securities or
part thereof shall have been filed under the Federal Securities Laws and (b) may
approach and negotiate  with a single  potential  purchaser to effect such sale.
The Pledgor  acknowledges  and agrees that any such sale might  result in prices
and other  terms less  favorable  to the seller  than if such sale were a public
sale without such restrictions. In the event of any such sale, the Secured Party
shall incur no  responsibility  or liability  for selling all or any part of the
Pledged  Securities at a price that the Secured Party,  in its sole and absolute
discretion,   may  in  good  faith  deem  reasonable  under  the  circumstances,
notwithstanding  the possibility  that a  substantially  higher price might have
been realized if the sale were deferred until after registration as aforesaid or
if more, than a single purchaser were approached. The provisions of this Section
14 will apply  notwithstanding  the existence of a public or private market upon
which the quotations or sales prices may exceed substantially the price at which
the Secured Party sells.

          15. REGISTRATION, ETC. The Pledgor agrees that, upon the occurrence of
a default hereunder,  if for any reason the Secured Party desires to sell any of
the  Milkhaus  Shares at a public  sale,  he will,  at any time and from time to
time,  upon the written  request of the Secured  Party,  use his best efforts to
cause  Milkhaus to take such  action and  prepare,  distribute  and/or file such
documents, as are required or advisable in the reasonable opinion of counsel for
the Secured  Party to permit the public sale of such Milkhaus  Shares;  provided
that Pledgor shall not be required to take any action that would be inconsistent
with his  position or duties as a director  of  Milkhaus.  The  Pledgor  further
agrees to indemnify, defend and hold harmless the Secured Party, any underwriter
and their respective  officers,  directors,  affiliates and controlling  persons
from and against all loss,  liability,  expenses,  costs of counsel  (including,
without  limitation,  reasonable fees and expenses to the Secured Party of legal
counsel),  and claims (including the costs of investigation) that they may incur
insofar as such loss, liability, expense or claim arises out of or is based upon
any alleged untrue  statement of a material fact contained in any prospectus (or
any  amendment  or  supplement  thereto)  or in  any  notification  or  offering
circular,  or arises out of or is based  upon any  alleged  omission  to state a
material fact required to be stated  therein or necessary to make the statements
in any thereof not  misleading,  except insofar as the same may have been caused
by any untrue statement or omission based upon information  furnished in writing
to the  Pledgor  or the  issuer of such  Milkhaus  Shares by the  Secured  Party
expressly for use therein. The Pledgor further agrees, upon such written request
referred to above, to use his best efforts to cause Milkhaus to qualify, file or
register, any of the Milkhaus Shares under the Blue Sky or other securities laws
of such states as may be requested by the Secured  Party and keep  effective all
such qualifications,  filings or registrations;  provided that Pledgor shall not
be required to take any action that would be  inconsistent  with his position or
duties as a director of  Milkhaus.  The Pledgor will bear all costs and expenses
of carrying out its obligations under this Section 15. The Pledgor  acknowledges
that there is no  adequate  remedy at law for  failure by him to comply with the
provisions  of this  Section 15 and that such  failure  would not be  adequately
compensable in damages,  and therefore  agrees that his agreements  contained in
this Section 15 may be specifically enforced.

<PAGE>


          16.  CUMULATIVE RIGHTS AND REMEDIES.  This Security  Agreement and the
security interest granted by this Security  Agreement are in addition to and not
in  substitution  for any other  security  interest now or hereafter held by the
Secured  Party,  and  this  Security  Agreement  is,  and is  intended  to be, a
continuing  agreement  and shall not operate as a merger of any contract debt or
suspend the  fulfillment of or affect the Secured  Party's  rights,  remedies or
powers in respect of any  obligation or other security held by the Secured Party
for the fulfillment  thereof.  The remedies provided in this Security  Agreement
are cumulative and are not exclusive of any remedy provided by law.

          17. NOTICES.  Any notice given under this Security  Agreement shall be
given in writing (including  teletransmissions)  and mailed,  teletransmitted or
delivered by the party giving such notice to the other party at the address,  if
to the Secured  Party,  indicated  beneath its  signature  line of this Security
Agreement or, if to the Pledgor,  indicated  beneath its signature  line of this
Security  Agreement  or, as to each such party,  at such other address as may be
designated by such party by notice  complying with the terms of this Section 17.
All notices under this Security  Agreement  shall be deemed given when deposited
in the mails or  delivered  or  teletransmitted,  addressed  as provided in this
Section 17.

          18. COSTS AND  EXPENSES.  The Pledgor  agrees to pay,  promptly  after
demand,  whether  or not any  default by us under this  Security  Agreement  has
occurred and whether or not any proceeding to enforce this Security Agreement or
the Obligations has been commenced,  all of the Secured Party's reasonable costs
and  expenses,   including  (but  not  limited  to)  all  reasonable   fees  and
disbursements of the Secured Party's legal counsel,  incurred in connection with
the enforcement of this Security  Agreement,  the security  interest  granted by
this  Security  Agreement,  the  receipt of proceeds  of  Collateral  under this
Security  Agreement,  the  care  and  preservation  of  the  Collateral  or  the
preparation   of  any  requested   amendments   to  this   Security   Agreement,
modifications  of this  Security  Agreement or waivers or consents in connection
with this Security Agreement. Any such expenses so incurred by the Secured Party
shall be specified to the Pledgor, shall be part of the Obligations and shall be
secured by the Collateral.

          If any  tax,  assessment,  charge  or claim is  claimed  or made  with
respect to the  Collateral  that in the Secured  Party's  opinion  may  possibly
create a valid obligation  having priority over the security interest granted to
the Secured Party by this Security Agreement, the Secured Party may, in its sole
discretion and without notice, pay such taxes,  assessments,  charges or claims,
and the amount  thereof shall be specified to the Pledgor,  shall be part of the
Obligations and shall be secured by the Collateral.

          Upon the Pledgor's failure to perform any of the its duties under this
Security  Agreement,  the  Secured  Party may,  but shall not be  obligated  to,
perform any or all of such duties, and the Pledgor will pay to the Secured Party
on written demand an amount equal to the cash or out-of-pocket  expense incurred
by the  Secured  Party in so doing  plus  interest  thereon  from the date  such
expense is  incurred  until it is paid at a rate per annum  equal to the highest
rate of interest payable by the Pledgor from time to time on the Obligations.

<PAGE>


          19. SUCCESSORS AND ASSIGNS,  GOVERNING LAW, SURVIVAL AND SEVERABILITY.
This  Security  Agreement,  which  shall  inure to the  benefit  of and shall be
binding   upon  each  of  the   parties   and   respective   heirs,   executors,
administrators,  successors  and assigns,  shall be governed by and construed in
accordance with the laws of the State of Connecticut. All covenants, agreements,
representations  and warranties  made by the Pledgor in this Security  Agreement
shall survive the  execution  and delivery of this Security  Agreement and shall
continue in full force and effect so long as any  Obligation  remains  unpaid or
unperformed.  If any part of this Security  Agreement is contrary to, prohibited
by or deemed invalid under  applicable law or regulations,  such provision shall
be  inapplicable  and deemed  omitted to the extent so contrary,  prohibited  or
invalid,  but the remainder of this Security  Agreement shall not be invalidated
and shall be given  full  force  and  effect  so far as  possible,  and any such
prohibition  or  invalidity  in  any  jurisdiction  shall  not  invalidate  such
provision or render it unenforceable in any other jurisdiction.

          20. NO ASSUMPTIONS OF DUTIES;  LIMITATION ON LIABILITIES.  (a) Nothing
in this Security Agreement shall be construed to constitute the Secured Party as
the Pledgor's agent for any purpose  whatsoever.  The Secured Party does not, by
this  Security  Agreement  or any  assignment  or  otherwise,  assume any of the
Pledgor's obligations under any Collateral or any contract or agreement relating
to any Collateral, and the Secured Party shall not be responsible in any way for
performance of any of the terms and conditions thereof.

               (b) Neither the Secured Party nor any of its directors, officers,
agents or employees shall be liable to any person or entity for any action taken
or omitted by it or any of its directors,  officers,  agents or employees  under
this Security Agreement or with respect to any transaction  contemplated by this
Security  Agreement,   except  for  the  Secured  Party's  or  such  director's,
officer's,  agent's or employee's  own gross  negligence or willful  misconduct.
Without limiting the generality of the foregoing, the Secured Party shall not be
responsible  or liable for any damage,  loss or  destruction  of any part of the
Collateral,  wherever it may be located  and  regardless  of the cause  thereof,
unless due to its own gross negligence or willful misconduct.  The Secured Party
shall  not,  under  any  circumstances  or in any  event  whatsoever,  have  any
liability  for any  error or  omission  or delay  of any kind  occurring  in the
settlement,  collection or payment of any Collateral or any instrument  received
in payment thereof or for any damage  resulting  therefrom.  The Pledgor assumes
all responsibility and liability arising from the use of the Collateral and will
pay, and indemnify and holds the Secured  Party  harmless from and against,  any
and  all  liabilities,   obligations,   losses,  damages,  penalties,   actions,
judgments,  suits,  costs,  expenses  or  disbursements  of any  kind or  nature
whatsoever  with  respect to its right,  title and interest in, to and under the
Collateral.

          21. AMENDMENTS, MODIFICATIONS AND WAIVERS WITH RESPECT TO OBLIGATIONS.
The Pledgor hereby  consents that,  without the necessity of any  reservation of
rights  against it and without  notice to or further assent by it, the liability
of any other  person or  entity  on or for any part of the  Obligations,  or any
collateral  security  or  guaranty  therefor  or right of  offset  with  respect
thereto,  may from  time to time,  in whole or in part,  be  renewed,  extended,
amended, modified, accelerated, compromised, waived, surrendered or released and
any other  collateral  security  document or guaranty or document  delivered  in
connection  therewith  to  which  the  Pledgor  is not a party  may be  amended,
modified,  supplemented,  restated or  terminated,  in whole or in part,  as the

<PAGE>


Secured Party may deem advisable from time to time, and any collateral  security
or guaranty  or right of offset at any time held for payment of the  Obligations
may be sold, waived,  surrendered or released,  all without the necessity of any
reservation  of rights  against the  Pledgor  and  without  notice to or further
assent  by  the  Pledgor,   and  the  Pledgor   will  remain   bound   hereunder
notwithstanding  any  such  renewal,  extension,   modification,   acceleration,
compromise,  amendment,  supplement,  restatement,  termination, sale, exchange,
waiver,  surrender or release. The Pledgor waives any and all notice of or proof
of  reliance  by  the  Secured  Party  on  this  Security  Agreement,   and  the
Obligations, and any of them, shall conclusively be deemed to have been created,
contracted  or  incurred  in  reliance  upon this  Security  Agreement,  and all
dealings  between the parties shall  likewise be  conclusively  presumed to have
been had or  consummated  in reliance on this  Security  Agreement.  The Pledgor
waives  (to  the  fullest  extent   permitted  by  applicable   law)  diligence,
presentment,  protest, demand for payment and notice of default or nonpayment to
with respect to the Obligations.

          22. NO  SUBROGATION.  Notwithstanding  any payment or payments made by
the Pledgor  hereunder,  the  receipt of any  amounts by the Secured  Party with
respect to the Collateral or any setoff or application of the Pledgor's funds by
the Secured Party,  the Pledgor shall not be entitled to be subrogated to any of
the Secured Party's rights against any collateral  security or guaranty or right
of offset held by the Secured Party for the payment of the Obligations.

          23.  HEADINGS;  CONSTRUCTION.  The  headings  used  in  this  Security
Agreement are for  convenience  only and are not to be considered a part of this
Security  Agreement  and do not in any  way  limit  or  amplify  the  terms  and
provisions  of this  Security  Agreement.  When the  context  so  requires,  the
singular number shall be read as if the plural were expressed and the provisions
of this Security Agreement shall be read with all grammatical  changes necessary
dependent upon the person or entity  referred to being a male,  female,  firm or
corporation.

          24.  SUBMISSION TO JURISDICTION.  The Pledgor expressly submits to the
jurisdiction   of  all  federal  and  state  courts  located  in  the  State  of
Connecticut,  and consents that any order,  process or other paper may be served
upon it within or without such court's  jurisdiction  by  registered  mail or by
personal  service  at the  address  specified  pursuant  to  Section  17 hereof,
PROVIDED a reasonable  time for appearance is allowed.  The Pledgor  irrevocably
waives any objection it may now or hereafter  have to the laying of venue of any
suit, action or proceeding arising out of or relating to this Security Agreement
brought in any such court and further irrevocably waives any claim that any such
suit,  action or  proceeding  brought in any such  court has been  brought in an
inconvenient  forum.  Nothing contained in this Security  Agreement shall affect
the Secured  Party's right to serve legal process in any other manner  permitted
by law or to bring any action or proceeding  against the Pledgor or its property
in the courts of other jurisdictions.

          25.  DEFEASANCE.   Upon  indefeasible  satisfaction  in  full  of  the
Obligations,  this Security Agreement shall terminate and be of no further force
and effect.  Notwithstanding  the preceding  sentence,  the indemnity  agreement
contained  in  Section  20(b)  of this  Security  Agreement  shall  survive  the
termination of this Security Agreement.

<PAGE>


          26. PRIOR UNDERSTANDINGS. This Security Agreement supersedes all prior
understandings  and  agreements,  whether  written or oral,  between the parties
relating to the  transactions  provided  for  herein;  provided,  however,  that
notwithstanding any provision of this Security Agreement,  the provisions of the
agreements setting forth the terms of the Options shall remain in full force and
effect and shall be fully  enforceable  by Pledgor and the Company in accordance
with their terms.

          27.  COUNTERPARTS.  This  Security  Agreement  may be  executed in any
number of counterparts and by the parties hereto on separate counterparts,  each
of which,  when so executed and  delivered,  shall be an original,  but all such
counterparts shall together constitute one and the same instrument.

          28. WAIVER OF JURY TRIAL.  THE PLEDGOR AND, BY ITS  ACCEPTANCE OF THIS
SECURITY  AGREEMENT,  THE  SECURED  PARTY  HEREBY  KNOWINGLY,   VOLUNTARILY  AND
INTENTIONALLY  WAIVE ANY RIGHT THE  PLEDGOR OR THE  SECURED  PARTY MAY HAVE TO A
TRIAL  BY JURY  OF ANY  DISPUTE  ARISING  UNDER  OR  RELATING  TO THIS  SECURITY
AGREEMENT OR THE SECURED  PROMISSORY  NOTE AND AGREE THAT ANY SUCH DISPUTE SHALL
BE TRIED BEFORE A JUDGE SITTING WITHOUT A JURY.

                                                 /S/  RICHARD A. SANDBERG
                                                 ------------------------
                                                 Richard A. Sandberg

                                                 Address for notices:

                                                   233 Brushy Ridge
                                                   New Canaan, Connecticut 06840

ACCEPTED:

DIANON SYSTEMS, INC.



By  /S/  KEVIN JOHNSON
    -------------------
    Kevin Johnson


Address for notices:

    200 Watson Boulevard
    Stratford, Connecticut 06497

<PAGE>

                                                                      SCHEDULE I

<TABLE>
<CAPTION>
                                  COMMON STOCK
                                  ------------

                                                Stock Certificate
NAME OF ISSUER              CLASS OF STOCK      NUMBER(S)           NUMBER OF SHARES
- --------------              --------------      ---------           ----------------

<S>                         <C>                  <C>                 <C>   
Milkhaus Laboratory, Inc.   Common                72                 32,750

</TABLE>


<TABLE>
<CAPTION>
                                     OPTIONS
                                     -------

                            Class of
NAME OF ISSUER              UNDERLYING SHARES   NUMBER OF SHARES   EXERCISE PRICE
- --------------              -----------------   ----------------   ----------------

<S>                         <C>                      <C>                <C>
DIANON Systems, Inc.        Common                   124,800             $8.00

DIANON Systems, Inc.        Common                    31,200            $10.75

DIANON Systems, Inc.        Common                    20,000             $4.56

</TABLE>



                                                                   EXHIBIT 10.41
                                                                   -------------

                             SECURED PROMISSORY NOTE


$300,000                                                 April 30, 1997



     FOR VALUE  RECEIVED,  Richard  A.  Sandberg  and his heirs,  executors  and
administrators  ("Borrower")  hereby  promises  to pay to DIANON  Systems,  Inc.
("Lender")  the principal sum of Three Hundred  Thousand  Dollars  ($300,000) on
April 30,  1999,  and to pay interest on the unpaid  principal  balance from the
date  hereof  until paid in full at the rate of 9.5% per annum on April 30, 1998
and April 30, 1999.

     Payments of principal and interest shall be made in lawful  currency of the
United  States at the  offices  of Lender at 200  Watson  Boulevard,  Stratford,
Connecticut or such other place as Lender may designate.

     This Note may be prepaid by Borrower prior to its stated  maturity in whole
or in  part at any  time  or from  time to  time,  without  penalty  or  premium
(together  with  interest  accrued  to the date of  prepayment  on the amount of
principal being prepaid).

     The obligations of Borrower under this Note are secured by a first priority
pledge of and security  interest in (i)  Borrower's  rights under his options to
purchase  Common  Stock of Lender,  (ii) any shares of stock of Lender  issuable
upon  exercise  of such  options  and (iii)  30,000  shares of stock of Milkhaus
Laboratory,  Inc. owned by Borrower,  pursuant to a Security Agreement dated the
date hereof  (the  "Security  Agreement").  Borrower  agrees  that the  Security
Agreement  shall be binding upon the Borrower and that the grant of the security
interest in the  Collateral  (as  defined in the  Security  Agreement)  shall be
irrevocable  and  unconditional,  irrespective  of  the  validity,  legality  or
enforceability   of  the  obligations  of  Borrower   hereunder  and  the  other
Obligations (as defined in the Security Agreement), the absence of any action to
enforce the same, any waiver or consent by the Secured Party with respect to any
provisions  thereof,  or any  action to  enforce  the same or any other  similar
circumstances.

     In the event that (A) Borrower,  pursuant to or within the meaning of Title
11, U.S. Code or any similar foreign, United States federal or state law for the
relief  of  debtors  ("Bankruptcy  Law"),  (i)  commences  a  voluntary  case or
proceeding,  (ii) consents to the entry of an order for relief against  Borrower
in an involuntary  case or proceeding,  (iii)  consents to the  appointment  for
Borrower of a receiver, trustee, assignee,  liquidator,  sequestrator or similar
official  under any  Bankruptcy  Law (a  "Custodian"),  or (iv)  makes a general
assignment  for the benefit of Borrower's  creditors or (B) a court of competent
jurisdiction  enters an order or decree under any Bankruptcy Law that (i) is for
relief against  Borrower in an involuntary  case or proceeding,  (ii) appoints a
Custodian for all or substantially all of Borrower's properties, or (iii) orders
the liquidation of all or  substantially  all of the assets of Borrower,  or (C)
Borrower is in default under the Security Agreement or (D) Borrower fails to pay

<PAGE>


interest when due, then in any such case all unpaid principal of and interest on
this Note shall IPSO FACTO become and be immediately due and payable without any
declaration or other act on the part of Lender.

     Borrower  shall pay all of the costs and  expenses of Lender in  connection
with any action  taken by it to collect or enforce  this Note,  to exercise  its
rights under the Security  Agreement  referred to above or to protect its rights
with respect thereto including  reasonable  attorney's fees, whether or not suit
be instituted,  and Lender may, without  limitation,  take judgment for all such
amounts.

     Borrower  hereby submits to the  jurisdiction of the courts of the State of
Connecticut  and  the  Federal  courts  of the  United  States  of  America  for
Connecticut  in respect of any legal action or proceeding  relating to this Note
or the  enforcement  of any  judgment in respect of this Note.  Borrower  hereby
waives, and agrees not to assert as a defense in any action,  suit or proceeding
for the  interpretation  and/or  enforcement  of this Note that  Borrower is not
subject thereto,  that such action,  suit or proceeding may not be brought or is
not  maintainable  in said  courts,  that this Note may not be enforced in or by
said courts, that Borrower's  property is exempt or immune from execution,  that
the suit, action or proceeding is brought in an inconvenient  forum or that that
venue of the suit,  action or  proceeding  is  improper.  Borrower  agrees  that
service of process in any such  action,  suit or  proceeding  shall be deemed in
every  respect  effective  service of process upon him if mailed or delivered to
Richard A. Sandberg, 233 Brushy Ridge, New Canaan, Connecticut 06840.

     This Note shall be governed by and construed in accordance with the laws of
the State of Connecticut  applicable to instruments  made and to be performed in
Connecticut and cannot be changed orally.



                                                 /S/  RICHARD A. SANDBERG
                                                 ------------------------
                                                 Richard A. Sandberg


<TABLE> <S> <C>


<ARTICLE>                5
<MULTIPLIER>             1,000
<CURRENCY>               U.S. Dollars
       
<S>                                            <C>
<PERIOD-TYPE>                                  6-MOS
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 JAN-01-1997
<PERIOD-END>                                   JUN-30-1997
<EXCHANGE-RATE>                                          1
<CASH>                                              11,229
<SECURITIES>                                             0
<RECEIVABLES>                                       12,729
<ALLOWANCES>                                         1,028
<INVENTORY>                                            786
<CURRENT-ASSETS>                                    27,139
<PP&E>                                              16,743
<DEPRECIATION>                                       9,541
<TOTAL-ASSETS>                                      35,655
<CURRENT-LIABILITIES>                                8,796
<BONDS>                                                  0
                                    0
                                              0
<COMMON>                                                68
<OTHER-SE>                                          26,463
<TOTAL-LIABILITY-AND-EQUITY>                        35,655
<SALES>                                             31,658
<TOTAL-REVENUES>                                    31,658
<CGS>                                               15,755
<TOTAL-COSTS>                                       15,755
<OTHER-EXPENSES>                                    13,567
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                      19
<INCOME-PRETAX>                                      2,541
<INCOME-TAX>                                         1,093
<INCOME-CONTINUING>                                  1,449
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                         1,449
<EPS-PRIMARY>                                         0.21
<EPS-DILUTED>                                         0.21
        


</TABLE>


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