title: The precarcinomatous phase of ulcerative colitis.
mesh_terms: D000236:Adenoma / Q000473:pathology; D000328:Adult; D000367:Age Factors; D002648:Child; D003093:Colitis, Ulcerative / Q000150:complications / Q000473:pathology*; D003106:Colon / Q000473:pathology; D003110:Colonic Neoplasms / Q000209:etiology; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D007414:Intestinal Neoplasms / Q000209:etiology / Q000473:pathology*; D007417:Intestinal Polyps / Q000473:pathology; D008875:Middle Aged; D011230:Precancerous Conditions / Q000473:pathology*; D012007:Rectum / Q000473:pathology