Jejunal adenocarcinoma presenting with hematemesis.
D000230:Adenocarcinoma / Q000175:diagnosis*; D000740:Anemia / Q000175:diagnosis; D006396:Hematemesis / Q000175:diagnosis*; D006801:Humans; D007580:Jejunal Neoplasms / Q000175:diagnosis*; D008297:Male; D008551:Melena / Q000175:diagnosis; D008875:Middle Aged