Primary External Iliac Venous Aneurysm Successfully Treated with Aneurysmectomy and Revascularization: A Case Report

Abstract

A 57-year-old woman was referred to our department following an abnormal finding on preoperative imaging for a duodenal submucosal tumor. Enhanced computed tomography revealed a 42 mm fusiform aneurysm of the left external iliac vein, without evidence of mural thrombus. Six months after the tumor resection, we performed elective aneurysmectomy and venous reconstruction utilizing a saphenous vein graft. Histopathological findings strongly suggested a primary venous aneurysm. The site of revascularization has remained patent for 1 year postoperatively. Primary iliac venous aneurysm is rare, but occasionally lethal without an appropriate treatment due to rupture or thromboembolism.