Adventitial cystic disease of the popliteal artery with intimal tear.

We report the case of a 68-year-old man with right intermittent claudication by adventitial cystic disease. We performed resection of the cyst and affected popliteal artery with interposing an autologous vein graft. Intraoperative findings revealed an intimal tear between the cyst and the compressed artery. His symptoms resolved after surgery, and the postoperative course was uneventful. Although adventitial cystic disease with intimal tear is rare, we consider that conventional surgical intervention remains the favorable treatment option for adventitial cystic disease. <Learning objective: We present a rare case of adventitial cystic disease (ACD) with intimal tear successfully treated with surgical repair. In the present case, intimal tear could not be detected preoperatively. Although this case is rare, we should pay attention to intimal tear in treating ACD. In case of ACD with intimal tear, resection of the affected artery and reconstruction with interposing graft are feasible.>.