title: Unusual causes of upper gastrointestinal hemorrhage.
mesh_terms: D000328:Adult; D000368:Aged; D001019:Aortic Rupture; D004240:Diverticulum / Q000150:complications; D004932:Esophageal and Gastric Varices / Q000150:complications; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications; D007421:Intestine, Small / Q000503:physiopathology; D007938:Leukemia / Q000150:complications; D008113:Liver Neoplasms / Q000150:complications; D008297:Male; D008309:Mallory-Weiss Syndrome / Q000150:complications; D008551:Melena / Q000209:etiology; D008875:Middle Aged