EXHIBIT 23.2

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 pertaining to the 1999 Employee Stock Purchase Plan of Genzyme
Corporation for the registration of 300,000 shares of Genzyme General Division
common stock, 400,000 shares of Genzyme Biosurgery Division common stock and
150,000 shares of Genzyme Molecular Oncology Division common stock of our report
dated January 31, 2001, with respect to the financial statements of Focal, Inc.
included in Focal, Inc.'s Annual Report (Form 10-K) for the year ended December
31, 2000, filed with the Securities and Exchange Commission.

                                             /s/ Ernst & Young LLP

Boston, Massachusetts
June 11, 2002