Colonic varices: an often unrecognized cause of rectal bleeding.
D003106:Colon / Q000098:blood supply*; D003113:Colonoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D012007:Rectum; D014648:Varicose Veins / Q000150:complications* / Q000175:diagnosis