Cancer in ulcerative colitis.
D003092:Colitis; D003093:Colitis, Ulcerative; D003108:Colonic Diseases; D006801:Humans; D009369:Neoplasms; D012004:Rectal Neoplasms; D012811:Sigmoid Neoplasms
COLITIS, ULCERATIVE; COLONIC DISEASES; RECTAL NEOPLASMS; SIGMOID NEOPLASMS