EXHIBIT 23.2


                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in this Registration
Statement (to register 50,000 shares of common stock pursuant to the ImmunoGen,
Inc. 2001 Non-Employee Director Stock Plan on Form S-8) of our report dated
August 14, 2001, relating to the financial statements of ImmunoGen, Inc. (the
"Company"), which appears in the Company's Annual Report on Form 10-K for the
year ended June 30, 2001.



/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts
December 17, 2001