Popliteal entrapment syndrome.

A case of a type of popliteal entrapment syndrome that does not include an anomalous course of the popliteal artery is presented. In situ thrombosis secondary to entrapment-induced stasis was the presumed cause of ischemic symptomatology. Thorough knowledge of the possible causes of entrapment and biplane angiography (of the popliteal artery) with provocative maneuvers often are required for diagnosis. As in our patient, surgical release of the entrapment can lead to complete resolution of symptoms.