A saccular superior vena cava aneurysm with unique diagnostic computed tomography findings

摘要

A saccular superior vena cava aneurysm is a rare venous aneurysm that presents as mediastinal mass lesions. An evaluation using contrast‐enhanced computed tomography is indispensable for the diagnosis. Highlights A saccular superior vena cava aneurysm is a rare venous aneurysm that presents as mediastinal mass lesions. An evaluation using contrast‐enhanced computed tomography is indispensable for the diagnosis.