Bow hunter’s syndrome successfully treated with a posterior surgical decompression approach: A case report and review of literature

Figure 2 Digital subtraction angiography. A: Lateral cerebral angiography projections without stenosis of the left vertebral artery in the neutral position (left side) and with complete occlusion of the V3 segment at the C2 Level upon turning the head to the right at 40° (right side; arrow); B: Anteroposterior cerebral angiography projections confirming the dynamic occlusion of the left VA in case of right head rotation (right side). Please note left VA irregular luminal injection and focal parietal ectasia in the neutral position (left side; arrow).