title: [A case of minimal-sized adenocarcinoma in a fistula-in-ano].
abstract: The patient was 47 year-old man with a simple intermuscular fistula-in-ano. Fistulectomy revealed that there was a small mucinous adenocarcinoma. The tumor was small and localized in the wall of the fistula and the muscular invasion was not recognized. The mucin contained a little O-acylated sainomucin, and the origin of the tumor was considered as anal gland cell. This case appears as one evidence that the cancer in fistula-in-ano originates from the anal gland cell in the fistula.
authors.affiliation: Coloproctology Center, Takano Hospital, Kumamoto, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hashimoto
authors.forename: M
authors.initials: M
authors.lastname: Takano
authors.forename: T
authors.initials: T
authors.lastname: Fujiyoshi
authors.forename: K
authors.initials: K
authors.lastname: Takagi
authors.forename: M
authors.initials: M
authors.lastname: Kawano
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*