Venous aneurysms
Michel PERRIN Vascular Surgery Chassieu, France INTRODUCTION Venous aneurysms are rare vascular disorders which have been described throughout the venous system and can be seen at any age.1,2 The lower extremities are the most frequently affected, the popliteal vein being the most common site, followed by aneurysms of the head and neck, abdominal veins, and thoracic veins. The definition of venous aneurysm remains controversial, and there is no precise size criterion in the literature to distinguish between venous dilatation and venous aneurysm. Aneurysms are described as saccular or fusiform, an important distinction not only for anatomical reasons but also in…