[Aneurysm of the popliteal vein as the source of a lung embolism].

A case of pulmonary embolism secondary to a clinically unsuspected aneurysm of the popliteal vein is presented. The importance of venography in establishing the source of pulmonary emboli is stressed in comparison to other diagnostic investigations such as ultrasonography, computed tomography or pletysmography. The aneurysm was suitable for local venous reconstruction. Previously reported cases are reviewed, etiology, diagnosis and treatment of this uncommon condition are discussed.