title: Keratoacanthoma centrifugum marginatum arising from a scar after skin injury.
abstract: Among the variants of solitary keratoacanthoma, keratoacanthoma centrifugum marginatum (KCM) is characterized by the lack of a tendency toward spontaneous remission and by continuous centrifugal spread. We describe a case of KCM arising from the scar after an old skin injury. The lesion appeared on the dorsum of the right hand, grew peripherally for 30 months, and became a tumor with a multinodular margin and central atrophy. A biopsy specimen from the edge of the tumor showed features resembling typical solitary keratoacanthoma.
authors.affiliation: Department of Dermatology, Nagoya University School of Medicine, Japan.
authors.forename: D
authors.initials: D
authors.lastname: Watanabe
authors.forename: N
authors.initials: N
authors.lastname: Tachi
authors.forename: Y
authors.initials: Y
authors.lastname: Tomita
mesh_terms: D000368:Aged; D002921:Cicatrix / Q000150:complications*; D003937:Diagnosis, Differential; D006230:Hand Injuries / Q000150:complications*; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery