(10)      Investment Banking Services Agreement between
                                   Diagnon  Corporation  and Slusser Associates,
                                   Inc. dated March 12, 1997.




Slusser Associates, Inc.
One Citicorp Center, Suite 5100
153 East 53rd Street
New York, New York 10022

(212) 355-5235 - Fax (212) 752-3646

Christopher H. Atayan


CONFIDENTIAL

March 12, 1997

Dr. John C. Landon
Chairman, President
 and Chief Executive Officer
Diagnon Corporation
9600 Medical Center Drive
Rockville, Maryland 20850-3300

Dear John:

The following shall confirm the agreement between Diagnon Corporation ("Diagnon"
or the "Company") and Slusser Associates,  Inc. ("SA"), whereby SA shall provide
Diagnon certain investment banking services.

Scope of Services

SA shall render the following investment banking services to Diagnon:

1.       Assist  and  advise  the   Company   in   evaluating   it's   financial
         alternatives.

2.       Assist  and  advise  in  the  preparation  of  a  confidential  Private
         Placement Memorandum describing Diagnon and its proposed activities and
         use of proceeds.

3.       Assist  and  advise  the  Company   in   identifying   Investors   (the
         "Investors") who may have an interest in providing capital to Diagnon.

4.       Assist and advise Diagnon in contacting the Investors.

5.       Assist  and  advise  Diagnon  in  making financial presentations to the
         Investors.

6.       Assist  and  advise Diagnon in negotiation of the terms of any proposed
         investment by the Investors.

7.       Assist and  advise Diagnon in any other matters necessary to facilitate
         the financing.

         SA does not in any way guarantee or underwrite any securities  proposed
         to be issued by Diagnon.




Dr. John C. Landon
Page 2

Other

SA is a  registered  broker  dealer  with the NASD.  SA is acting  strictly as a
private  placement  agent  herein,  pursuant to regulation D and only deals with
institutional investors.

Compensation

SA shall be compensated as follows:

SA shall receive a private  placement fee of 5% of the gross proceeds  raised or
committed by the Investors.

Such fees shall be payable at closing and subject to a minimum of $100,000.

Expenses

Diagnon shall reimburse SA for any out-of-pocket expenses incurred in connection
with the  engagement  herein.  SA shall  notify the Company in the event that it
incurs any legal expenses. It is expected that the out-of-pocket  expenses shall
be in the range of  $15,000.  However,  they  could be  higher or lower  pending
market conditions.

Term

The initial term ("Term") of the engagement  shall be for 6 months from the date
herein.  Thereafter, the agreement may be terminated by Diagnon at any time upon
payment of a termination fee of $25,000.  However,  if in the twenty-four  month
period  following the Term,  Diagnon  enters into any agreement with any parties
whom SA contacted or with whom significant  discussions occurred during the Term
of the engagement, then SA shall be due all fees as applicable.

Indemnification

Diagnon  shall  indemnify SA in connection  with the  engagement  therein.  Such
indemnification  is  incorporated as Exhibit A, and will survive the expiration,
termination or supercession of this agreement.

Exclusivity

The services rendered by SA therein shall be on an exclusive basis.




Dr. John C. Landon
Page 3



Construction

This agreement will be construed in accordance with the laws of the State of New
York.

If the  preceding  is  acceptable,  please  indicate by signing  below.  We look
forward to working with Diagnon on this important assignment.

                                                    Sincerely,

                                                    SLUSSER ASSOCIATES, INC.


                                                    By /s/ Peter Slusser
                                                       _______________________
                                                       Peter Slusser
                                                       President



                                                    By /s/ Christopher Atayan
                                                       _______________________
                                                       Christopher H. Atayan
                                                       Principal

Accepted and agreed:

DIAGNON CORPORATION



By /s/ John C. Landon
   ____________________
   John C. Landon
   Chairman, President and Chief Executive Officer




                              Diagnon Corporation
                           9600 Medical Center Drive
                         Rockville, Maryland 20850-3300


                                                                       Exhibit A

Slusser Associates, Inc.
153 East 53rd Street, Suite 5100
New York, New York 10022

Gentlemen:

This letter will  confirm  that we (the  undersigned  also being the  "Company")
agree to indemnify you in connection  with your retention to provide  investment
banking  services to the Company  pursuant to the engagement  letter dated as of
the  date  hereof  (the   "Engagement   Letter"),   as  set  forth  below.   The
indemnification  provisions  of this  letter  will apply  equally  to you,  your
officers,  directors,  agents, employees and affiliates and each person, if any,
who controls you or any of your affiliates (collectively, the "SA Indemnitees").

We will furnish to you such information and data (the "Information") relating to
the  Company as you  reasonably  request and will  provide  you with  reasonable
access to the Company's officers, directors,  employees, counsel and independent
accountants.  You will not  disclose the  Information  except to such of you and
your affiliates' officers,  employees and agents as need to know the Information
in connection with your services under the Engagement  Letter. You may rely upon
the  Information  without  independently  verifying  it,  and you do not  assume
responsibility   for  its   accuracy  or   completeness,   whether  or  not  you
independently  verify  the  Information,  and you will  not make an  independent
appraisal of the assets of the Company.

We will  indemnify  and hold  harmless the SA  Indemnitees  from and against all
losses, claims, damages and liabilities (collectively,  "Liabilities") which are
(a)  related to  actions  taken or  omitted  to be taken  (including  any untrue
statements  made  or  any  statements  omitted  to be  made)  by us or by any SA
Indemnitee  with our  consent or in  conformity  with our  instructions,  or (b)
otherwise  related to your acting  pursuant to the  Engagement  Letter,  unless,
solely  in the  case  of  this  clause  (b) a court  of  competent  jurisdiction
determines  that such  Liabilities  resulted  primarily from an SA  Indemnitee's
willful  misconduct  or  gross  negligence.  We  will  also  reimburse  each  SA
Indemnitee  for any  expenses  incurred,  including  fees and  disbursements  of
counsel,  (collectively,  "Expenses") in connection  with any formal or informal
proceeding in connection  with your acting  pursuant to the  Engagement  Letter,
whether or not an SA Indemnitee is named a party or any liability results.




Slusser Associates, Inc.                 2

Promptly  after your receive  notice of the  commencement  of any  proceeding in
connection  with your  activities  pursuant to the Engagement  Letter,  you will
notify us in writing.  We will assume the defense,  including the  employment of
counsel   satisfactory   to  you  and  payment  of  such   counsel's   fees  and
disbursements.  Should you determine that separate counsel is necessary (whether
due to the existence of different  defenses,  potential conflicts of interest or
otherwise),  or if we have not assumed the defense, then you may employ separate
counsel,  and we shall pay such counsel's  reasonable fees and  disbursements as
incurred.

If any  indemnification  or  reimbursement  sought pursuant to this agreement is
held  by a  court  to be  unavailable  for  any  reasons,  then  you and we will
contribute to the  Liabilities  and Expenses for which such  indemnification  or
reimbursement  is held  unavailable  in such  proportion  as is  appropriate  to
reflect the  relative  benefits  to you,  on the one hand,  and us, on the other
hand, in connection  with the  transaction or  transactions  contemplated by the
Engagement Letter, which contribution by you shall in no event exceed the amount
of fees  actually  received by you pursuant to the  Engagement  Letter.  We both
agree that the relative benefits to you and to us of any transaction or proposed
transaction  contemplated by the Engagement  Letter shall be deemed to be in the
same  proportion  that (1) the fee  payable to you  pursuant  to the  Engagement
Letter  with  respect  to the  transaction  giving  rise to the  Liabilities  or
Expenses  bears to (2) the total  value  received  or paid by or  proposed to be
received or paid by us in such  transaction  (whether or not such transaction is
consummated).

In the event of any proceedings in connection  with the services  provided under
the Engagement Letter, you agree that, if requested,  your  representatives will
testify or  otherwise  assist us in  preparing  for  testimony.  We will pay you
additional  compensation as agreed to by us both to fully compensate you at your
customary rates for testifying in connection with such  proceedings or testimony
and will reimburse you for all expenses reasonably incurred by you in connection
with  the  proceedings,  including  the  fees and  disbursements  of your  legal
counsel.

Agreed and Accepted:                              Sincerely,

SLUSSER ASSOCIATES, INC.                          DIAGNON CORPORATION



By /s/ Christopher H. Atayan                   By /s/ John C. Landon
   _________________________                      _________________________
   Christopher H. Atayan                          John C. Landon
   Principal                                      Chairman, President
                                                    and Chief Executive Officer