Patrick Sullivan, Chairman, President and CEO of Cytyc Corporation,
Rings The NASDAQ Stock Market Opening Bell

Monday, May 22, 2006
at NASDAQ's MarketSite
in New York City.

Cytyc Corporation [CYTC]

Patrick Sullivan, Chairman, President and CEO of Cytyc Corporation (Nasdaq: CYTC) presides over the opening bell to celebrate the 10- year anniversary of FDA approval of the ThinPrep(R) Pap Test and the Company's 10-year anniversary on the NASDAQ.

Cytyc Corporation is a leading women's health company that designs, develops, manufactures, and markets innovative and clinically effective products for cervical cancer screening, breast cancer risk assessment, treatment of excessive menstrual bleeding, and treatment of breast cancer.

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