GI bleeding caused by amyloidosis.
D000368:Aged; D000686:Amyloidosis / Q000150:complications*; D003108:Colonic Diseases / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007674:Kidney Diseases / Q000150:complications; D008297:Male; D011469:Prostatic Diseases / Q000150:complications