True tibial artery aneurysms are rare lesions. They may manifest themselves clinically either as a painful leg mass or as evidence of ischemic changes in the foot. Asymptomatic lesions may be found incidentally during arteriography. The need for surgical intervention should be individualized depending on the presentation; the type of surgical intervention is based on coexistent tibial artery anatomy. The present report describes a patient with a true tibial artery aneurysm. Clinical presentation, radiographic findings, and surgical management are described.
A thrombosed, leaking aneurysm of the popliteal artery, mimicking a soft tissue sarcoma both clinically and by MRI examination, is described. It may be difficult to separate a leaking, thrombosed aneurysm from an inflammatory response secondary to a sarcoma with intralesional hemorrhage. An aneurysm should, however, be considered in the differential diagnosis if the mass is present in a well-recognized location for aneurysm and is associated with vascular engulfment and signs of subacute or chronic hemorrhage.
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