title: [Squamus epithelial carcinoma in anal fistula].
abstract: The case of a patient is reported, who developed a squamous cell cancer in a long standing anal fistula track. The observations seem to prove that irritated epithelium of chronic anal fistulas may be the source of a malignant disease.
mesh_terms: D001005:Anus Neoplasms / Q000150:complications* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000150:complications* / Q000601:surgery
vernacular_title: Plattenepithel-Karzinom in einer Analfistel.