title: Precancer in ulcerative colitis.
mesh_terms: D000236:Adenoma / Q000473:pathology; D000328:Adult; D000708:Anaplasia / Q000473:pathology; D001706:Biopsy; D002454:Cell Differentiation; D002648:Child; D003093:Colitis, Ulcerative / Q000150:complications*; D003110:Colonic Neoplasms / Q000209:etiology* / Q000473:pathology / Q000517:prevention & control; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000209:etiology; D011230:Precancerous Conditions / Q000209:etiology* / Q000473:pathology / Q000517:prevention & control; D012004:Rectal Neoplasms / Q000209:etiology* / Q000473:pathology / Q000517:prevention & control