[Proliferating trichilemmal tumor of the ischiorectal fossa].

Ann Pathol

Service d'anatomie pathologique, hôpital Saint-Joseph,185, rue Raymond-Losserand, 75674 Paris cedex 14, France.

Published: August 2011

Proliferating trichilemmal tumor (PTT) is rare and follows a protracted course, almost always benign. Nevertheless an adverse outcome may occur. Usually PTT presents as an indolent mass in the scalp of elderly women. We report a case of PTT localized in the ischiorectal fossa, which might have been diagnosed as an epidermoid carcinoma.

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http://dx.doi.org/10.1016/j.annpat.2011.05.011DOI Listing

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