Delayed presentation and management of blunt traumatic inferior gluteal artery pseudoaneurysm with associated arteriovenous fistula.

Disruption of arterial wall integrity as a result of trauma, iatrogeny, inflammation, or infection may result in pseudoaneurysm formation. Gluteal artery aneurysms are rare and represent less than 1% of all arterial aneurysms. Pseudoaneurysms of the inferior gluteal artery (IGA) following blunt trauma are exceptionally rare with only 6 reported cases in the English literature. We describe an 82-year-old female with a remote history of a fall presenting with an enlarging buttock mass. Imaging confirmed an IGA pseudoaneurysm with associated arteriovenous fistula that was successfully treated with endovascular embolization.