MARLBOROUGH, Mass.--(BUSINESS WIRE)--Cytyc Corporation (Nasdaq: CYTC), a leading provider of surgical and diagnostic products targeting cancer diagnostics and women’s health, announced today that the Company will host an Investor Day for institutional investors and analysts at the Four Seasons Hotel in New York City on Tuesday, December 12, 2006, from 8:30 a.m. to 2:00 p.m. ET.