title: Keratoacanthoma in the differential diagnosis of anal carcinoma: difficult diagnosis, easy therapy. Report of three cases.
abstract: Three male patients who had an anal keratoacanthoma are described. Anal keratoacanthoma is a rapidly growing skin tumor that invades the dermis but remains locally and can mimic clinically and histologically a squamous-cell carcinoma.
authors.affiliation: Department of Surgical Proctology, Park-Klinik, Kiel, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Küppers
authors.forename: J
authors.initials: J
authors.lastname: Jongen
authors.forename: J U
authors.initials: JU
authors.lastname: Bock
authors.forename: G
authors.initials: G
authors.lastname: Rabenhorst
mesh_terms: D001003:Anal Canal / Q000473:pathology / Q000601:surgery; D001004:Anus Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D001005:Anus Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged