Carolyn Collins

Popliteal artery aneurysms (PAAs) account for approximately 70% of all peripheral artery aneurysms. Despite the exact prevalence of PAAs being unknown, it is thought to be present in about 1% of the elderly male population. Acute thrombus in a PAA can increase the risk of lower limb ischemia and amputation. We present a case documenting an incidental finding of an asymptomatic “floating” or pedunculated thrombus within a left PAA on duplex ultrasound. This thrombus resolved following a period of anticoagulation with intravenous Heparin followed by oral administration of apixaban.

Fibromuscular dysplasia (FMD) is an idiopathic, non-atherosclerotic, and non-inflammatory systemic arterial disease which can affect all 3 layers of the small and medium-sized arteries. It can present as stenosis, aneurysm, dissection, or occlusion. FMD is more prevalent in women than in men. The medial type, described as a “string of beads appearance,” as documented in this case study, presents as a succession of dilatations and multifocal stenosis. This is the most common form and occurs in typically 60% to 70% of cases. We present a case report documenting an incidental finding of FMD within an upper limb forearm artery following percutaneous coronary intervention (PCI).