A 24-year-old man complains of progressive intermittent claudication of the left leg. On examination, the popliteal, dorsalis pedis, and posterior tibial pulses are normal; but they disappear on dorsiflexion of the foot. What is the most likely diagnosis?
Embolic occlusion Thromboangiitis obliterans Atherosclerosis obliterans Popliteal artery entrapment syndrome