[Popliteal venous aneurysm revealed by recurring pulmonary embolism. Echographic, phlebographic, x-ray computed tomographic and nuclear magnetic resonance aspects].

We report a characteristic case of popliteal vein aneurysm which was demonstrated not only by Doppler ultrasonography and venographic examination, but also by CT scan and magnetic resonance imaging. A review of the literature underlines the rarity of these aneurysms, since less than 20 cases have been published. They are always true aneurysms, most often revealed after an episode of pulmonary embolism. Doppler ultrasonography and venography confirm the diagnosis. The place of CT scan and magnetic resonance imaging remains to be defined. Even if asymptomatic, the embolic risk necessitates surgical resection of the aneurysm and restoration of venous continuity.