Makhlouf Zineb, Verola Olivier, Senejoux Agnès, Duval Antoine, Terris Benoît, Balaton André, Molinie Vincent
Service d'anatomie pathologique, hôpital Saint-Joseph,185, rue Raymond-Losserand, 75674 Paris cedex 14, France.
Ann Pathol. 2011 Aug;31(4):316-9. doi: 10.1016/j.annpat.2011.05.011. Epub 2011 Jul 7.
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.