title: A case of dermatofibrosarcoma protuberans on the right first toe.
abstract: Reports of dermatofibrosarcoma protuberans on a toe are extremely rare. It frequently occurs on the trunk and extremities. A Japanese woman presented with a dark-brownish hyperkeratotic plaque on the dorsal skin of her first toe. The initial clinical diagnosis of verruca vulgaris prompted treatment with cryotherapy. After that a glossy milky-white tumor appeared. Only the results of the histopathologic examination resulted in a diagnosis of dermatofibrosarcoma protuberans. The unusual macroscopic finding was considered to be due to repetitive stimulation by foot movement.
authors.affiliation: Department of Dermatology, Minoh City Hospital, Osaka, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hashiro
authors.forename: Y
authors.initials: Y
authors.lastname: Fujio
authors.forename: Y
authors.initials: Y
authors.lastname: Shoda
authors.forename: M
authors.initials: M
authors.lastname: Okumura
mesh_terms: D018223:Dermatofibrosarcoma / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D005534:Foot Diseases / Q000473:pathology*; D006801:Humans; D017495:Hyperpigmentation / Q000473:pathology; D007564:Japan; D007642:Keratosis / Q000473:pathology; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology*; D014034:Toes / Q000473:pathology*; D014860:Warts / Q000473:pathology