[Malignant changes in ulcerative colitis and Crohn's disease].
D000293:Adolescent; D000328:Adult; D002648:Child; D003093:Colitis, Ulcerative / Q000473:pathology*; D003110:Colonic Neoplasms / Q000473:pathology*; D003424:Crohn Disease / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D011230:Precancerous Conditions / Q000473:pathology; D012004:Rectal Neoplasms / Q000473:pathology*