title: Mucoepidermoid carcinoma in an "anal fistula" with associated adenocarcinoma in a villous adenoma of the descending colon: report of a case.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000473:pathology*; D000236:Adenoma / Q000150:complications / Q000473:pathology*; D001005:Anus Neoplasms / Q000150:complications / Q000473:pathology*; D002277:Carcinoma / Q000150:complications / Q000473:pathology*; D003110:Colonic Neoplasms / Q000150:complications / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000150:complications / Q000473:pathology*; D012003:Rectal Fistula / Q000150:complications