Pseudocarcinomatous invasion of colonic polyps.
D000230:Adenocarcinoma / Q000473:pathology; D000368:Aged; D002277:Carcinoma / Q000473:pathology; D003106:Colon / Q000473:pathology; D003110:Colonic Neoplasms / Q000473:pathology*; D004848:Epithelium / Q000473:pathology; D006801:Humans; D007417:Intestinal Polyps / Q000473:pathology*