Two rare causes of portal hypertension: the importance of establishing the cause.
D000328:Adult; D000368:Aged; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000150:complications; D006406:Hematoma / Q000150:complications; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis / Q000209:etiology*; D008641:Mesenteric Vascular Occlusion / Q000150:complications