ABSTRACT
A portal vein aneurysm (PVA) is an abnormal dilatation of the portal vein measuring more than 19 mm in
patients with portal hypertension and more than 15 mm in individuals with normal portal venous pressure.
PVA is rare accounting for only 0.06% to 3.0% of the visceral vessels’ aneurysms. This case report is about a
20-year-old female who presented with portal vein (PV) and superior mesenteric vein (SMV) thrombosis with
PVA. She was managed with anticoagulation. At 8 years of follow-up, she was symptom-free and did not have
evidence of portal hypertension.
Keywords: Portal vein aneurysm, portal vein thrombosis, portal vein development