title: [Proliferating trichilemmal tumor of the ischiorectal fossa].
abstract: 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.
authors.affiliation: Service d'anatomie pathologique, hôpital Saint-Joseph,185, rue Raymond-Losserand, 75674 Paris cedex 14, France. mymi321@yahoo.fr
authors.forename: Zineb
authors.initials: Z
authors.lastname: Makhlouf
authors.forename: Olivier
authors.initials: O
authors.lastname: Verola
authors.forename: Agnès
authors.initials: A
authors.lastname: Senejoux
authors.forename: Antoine
authors.initials: A
authors.lastname: Duval
authors.forename: Benoît
authors.initials: B
authors.lastname: Terris
authors.forename: André
authors.initials: A
authors.lastname: Balaton
authors.forename: Vincent
authors.initials: V
authors.lastname: Molinie
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D003560:Cysts / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D018859:Hair Follicle / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D010502:Perineum; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery