Adventitial cystic disease of the femoral vein: a case report and review of the literature.

Painless edema of the left leg developed in a 65-year-old man without a history of venous disease, and he was found to have a mass compressing the lumen of the left common femoral vein. The intramural cyst was drained through transvenous exposure and found to contain mucoid material. This is the seventh case of adventitial cystic disease of a vein in the world literature. Analogous to adventitial cystic disease of arteries, it is defined by venography, CT scanning, and duplex ultrasonography. Surgical drainage is the treatment of choice.