Gastrointestinal hemorrhage due to carcinoid tumors of the small intestine.
D002276:Carcinoid Tumor / Q000150:complications* / Q000473:pathology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007078:Ileal Neoplasms / Q000150:complications* / Q000473:pathology; D007082:Ileum / Q000473:pathology; D008297:Male; D008875:Middle Aged