Isolated true atherosclerotic aneurysms of the superficial femoral artery are rare. We report an original case of superficial femoral artery aneurysm (SFAA) not associated with dilatation of the common femoral or popliteal artery. The review of the literature emphasizes the great latency of the disease and the high incidence of complication at presentation, as well as, echosonographic diagnostical advantages over angiography. After surgical treatment the prognosis is favourable. Early recognition and surgical repair are recommended for patients with aneurysms of the superficial femoral artery greater at least twice the normal vessel size. Elective surgical treatment is associated with little risk to the patients and avoids the need for operation in the setting of limb-threatening ischemia.
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