TUCSON, AZ -- (MARKET WIRE) -- February 26, 2007 -- Ventana Medical Systems, Inc. (NASDAQ: VMSI) announced today that it has appointed Mr. Lawrence Mehren as Senior Vice President and Chief Financial Officer, effective May 1, 2007. Mr. Nicholas Malden will continue in his current role as the Company’s Senior Vice President and Chief Financial Officer through April 30, 2007; afterwards, he will serve as an advisor to the Company through the end of 2007.
