Mesenteric venous infarction: presenting as upper gastro-intestinal bleeding.
D000368:Aged; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008641:Mesenteric Vascular Occlusion / Q000175:diagnosis*; D008642:Mesenteric Veins; D013927:Thrombosis / Q000175:diagnosis*