Exhibit 23.1

                   Consent of Independent Public Accountants

   As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement on Form S-4 of our report dated
January 21, 2002 (except with respect to the matter discussed in Note 14 as to
which the date is February 19, 2002) included in Cytyc Corporation's Form 10-K
for the year ended December 31, 2001 and to all references to our Firm included
in this registration statement.

                                          /s/ Arthur Andersen LLP

Boston, Massachusetts

March 26, 2002



                                      1