Colorectal carcinoma in ulcerative colitis.
D003093:Colitis, Ulcerative / Q000150:complications*; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery; D012306:Risk