title: A case of cellular schwannoma of the skin presenting as a large ulcerated tumor on the ankle.
abstract: Cellular schwannoma (CS) is a rare, benign, nerve sheath tumor. It is slowly growing and painless, and it shows a predilection for the paravertebral region of the mediastinum and the retroperitoneum. CS rarely occurs in the skin. It has more cellular and more atypical cytological features than ordinary schwannoma but follows a benign clinical course. The key histological feature is a distinct predominance of cellular Antoni A tissue. Herein we report a case of CS presenting as a 5 x 5 x 3 cm, ulcerated and protruding tumor on the left ankle and describe its indolent clinical course.
authors.affiliation: Department of Dermatology, College of Medicine, University of Ulsan, Seoul, Korea.
authors.forename: Sook-Kyoung
authors.initials: SK
authors.lastname: Kang
authors.forename: Sung-Eun
authors.initials: SE
authors.lastname: Chang
authors.forename: Jee-Ho
authors.initials: JH
authors.lastname: Choi
authors.forename: Kyung-Jeh
authors.initials: KJ
authors.lastname: Sung
authors.forename: Kee-Chan
authors.initials: KC
authors.lastname: Moon
authors.forename: Jai-Kyoung
authors.initials: JK
authors.lastname: Koh
mesh_terms: D000328:Adult; D000842:Ankle; D003937:Diagnosis, Differential; D006801:Humans; D007871:Leg Ulcer / Q000209:etiology / Q000601:surgery; D008297:Male; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012878:Skin Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery