A Case of Acute Iliocaval Thrombosis in the Setting of a Suprarenal Inferior Vena Cava Saccular Aneurysm.

Inferior vena cava (IVC) aneurysms are a rare finding, whose management and outcomes remain uncertain due to their low incidence and long-term follow-up. As IVC aneurysms remain a poorly understood clinical entity, it is important to expand upon our existing knowledge base as new cases arise. We present a patient with a suprarenal IVC saccular aneurysm and an overview of the current literature regarding IVC aneurysm classification, presentation, and management. Based on the expanding literature, we propose that IVC aneurysms may be simplified into a 2-type classification, which can further guide clinicians on management of the aneurysm.