title: Giant keratoacanthoma-like cutaneous horn of the upper leg: A case report.
abstract: Giant cutaneous horns are suspicious of malignancy, in particular squamous cell carcinoma. We report on a 67-year-old man that developed a giant horn on his upper leg that resembled a keratoacanthoma. The lesion was surgically removed. Histologic investigation revealed a giant verruca vulgaris. No risk factors such as immunosuppression were evident. Giant verruca vulgaris is a very rare cause of giant cutaneous horns. Complete excision is recommended in order not to overlook a malignant skin tumor in such cases.
authors.affiliation: Department of Dermatology and Allergology and Georg Schmorl Institute of Pathology, Dresden-Friedrichstadt Hospital, Academic Teaching Hospital of the Technical University of Dresden, 01067 Dresden, Germany. wollina-uw@khdf.de
authors.forename: Uwe
authors.initials: U
authors.lastname: Wollina
authors.forename: Jaqueline
authors.initials: J
authors.lastname: Schönlebe
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007636:Keratoacanthoma / Q000473:pathology*; D007866:Leg; D008297:Male; D014860:Warts / Q000473:pathology*