title: Thrombotic thrombocytopenic purpura presenting as an acute abdomen.
mesh_terms: D000006:Abdomen, Acute / Q000209:etiology*; D000293:Adolescent; D002908:Chronic Disease; D006801:Humans; D008297:Male; D011697:Purpura, Thrombotic Thrombocytopenic / Q000150:complications*