Abnormal anatomic relationship between the medial head of gastrocnemius (MHG) and the popliteal artery. The artery (with absent flow void) is seen to be abnormally displaced medial to the medial head of gastrocnemius and is separated from the popliteal vein.
Left popliteal artery is thrombosed (absent flow void). The abnormal location of the popliteal artery medial to the medial head of gastrocnemius is seen bilaterally, which is often the case.