Nontraumatic aneurysms affecting crural arteries: case report and review of the literature.

Aneurysms involving the infrapopliteal arteries are rare, with most cases being attributed to a previous traumatic event. Mycotic aneurysms in this location are even more uncommon. Owing to their infrequency, these aneurysms represent a difficult diagnostic challenge. We present a case of a symptomatic anterior tibial artery aneurysm in a 59-year-old male with a medical history significant only for an episode of bacterial endocarditis, subsequently requiring an aortic valve replacement. Surgical repair was performed with a popliteal to anterior tibial bypass with a reversed saphenous vein graft. The patient's recovery was uneventful. We also reviewed the literature on this type of aneurysm to assess the incidence, etiology, options for treatment, and outcomes.