UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                              _____________________

                                    FORM 8-K

                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                                December 31, 2003
                Date of Report (date of earliest event reported)

                             _____________________

                          VENTANA MEDICAL SYSTEMS, INC.
             (Exact name of Registrant as specified in its charter)

     State of Delaware                  000-20931               94-2976937
(State or other jurisdiction of  (Commission File Number)    (I.R.S. Employer
incorporation or organization)                            Identification Number)

                           1910 Innovation Park Drive
                                Tucson, AZ 85737
                    (Address of principal executive offices)

                                 (520) 887-2155
              (Registrant's telephone number, including area code)

                                       N/A
          (Former name or former address, if changed since last report)

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Item 7. Financial Statements and Exhibits

         (c)  Exhibits

Exhibit No.      Description
--------------   ---------------------------------------------------------------
99.1             Press Release, dated as of February 20, 2004


Item 9.  Regulation FD Disclosure (pursuant to Item 12)


     In accordance with Securities and Exchange  Commission Release No. 33-8216,
the  following  information,  which is intended to be  furnished  under Item 12,
"Results of Operations  and  Financial  Condition,"  is instead being  furnished
under Item 9, "Regulation FD Disclosure."  This information  shall not be deemed
"filed" for purposes of Section 18 of the  Securities  Exchange Act of 1934,  as
amended (the "Exchange  Act"),  or incorporated by reference in any filing under
the Securities Act of 1933, as amended,  or the Exchange Act, except as shall be
expressly set forth by specific reference in such a filing.

     On February 20, 2004,  Ventana Medical Systems,  Inc.  ("Ventana") issued a
press release  regarding  Ventana's  results of operations for the quarter ended
December 31, 2003, and disclosing  material  non-public  information.  The press
release  is  attached  hereto as  Exhibits  99.1 and is  incorporated  herein by
reference.


                                     SIGNATURES

     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.

                                         VENTANA MEDICAL SYSTEMS, INC.

                                         By: / s / NICHOLAS MALDEN
                                             ---------------------
                                             Nicholas Malden
                                             Senior Vice President, Chief
                                             Financial Officer and Secretary


Date: February 20, 2004