Our experience of popliteal vein aneurysm.

Popliteal venous aneurysms (PVA) are rare and in most cases the first sign of their presence is a pulmonary embolus or other thromboembolic events. We report four cases of PVA, in two of these the first sign of their presence was an acute pulmonary embolism; in two remaining cases the diagnosis was fortuitous. Accurate evaluation of venous system of lower limb by duplex scan is important in all cases of pulmonary embolism, the anticoagulation may be ineffective in preventing pulmonary embolism and the surgical repair is the mainstay of therapy of this pathology because it is safe and effective.