[Two cases of cystic adventitial disease of the popliteal artery. Current diagnostic approach].

The authors report two cases of cystic adventitial disease of the popliteal artery. Both patients complained of calf claudication and presented a thrombosis of the popliteal artery. In one case, magnetic resonance imaging exhibited a specific preoperative diagnosis. In both cases, at least one communication between the cysts and the capsule of the knee joint was demonstrated, supporting the congenital hypothesis of the disease. The two cases have been treated by vein graft replacement of the occluded popliteal arteries. Both patients have remained asymptomatic and the two grafts have remained patent during the ninth and twelfth month follow-up periods.