Aorto-venous fistula between an abdominal aortic aneurysm and an aberrant renal vein: a case report.

Introduction: The potential complications of an abdominal aortic aneurysm include rupture, compression of surrounding structures, thrombo-embolic events and fistula. The most common site of arterio-venous fistula is the inferior vena cava. Fistula involving a renal vein is particularly uncommon.