Unilateral acute lower extremity ischemia with popliteal artery aneurysm as a result of vascular type III entrapment in an elderly patient.

Popliteal artery entrapment syndrome (PAES) is a rare cause of acute limb ischemia in adult patients but commonly demonstrates as claudication in young patients. The most significant, although rare, complication associated with PAES is aneurysm formation. We present the case of an elderly patient with a unilateral popliteal artery aneurysm owing to symptomatic anatomic entrapment. This report presents the oldest patient ever reported with this syndrome and highlights the advantage of multimodal treatment. As multidetector computed tomography highly contributed to the rapid diagnostic confirmation and choice of treatment in the popliteal fossa, limb salvage was achieved in this patient.