A Rare Case of Portal Vein Thrombosis Due to Portal Vein Aneurysm. Case Report and the Review of the Literature

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.