Peripheral artery aneurysm.

Peripheral aneurysms typically present as asymptomatic incidental findings or may present with symptoms when there is local compression of other structures, such as nerves or veins, with ischemia, or rarely with rupture. Larger and symptomatic aneurysms should be repaired. Ultrasonography, computed tomography angiography, and magnetic resonance angiography can be used to define inflow and outflow and better characterize the aneurysm, particularly size and thrombus. Repair of peripheral aneurysms typically involves resection with interposition grafting, although certain anatomic sites may be amenable to endovascular approaches. Femoral pseudoaneurysms can be managed with observation, surgical repair, ultrasound-guided compression, or ultrasound-guided thrombin injection.