Mucosal neuroma of the rectosigmoid colon.
D001706:Biopsy; D003110:Colonic Neoplasms / Q000473:pathology*; D003113:Colonoscopy; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology*; D007417:Intestinal Polyps / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009463:Neuroma / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*; D012811:Sigmoid Neoplasms / Q000473:pathology*