Anomalous Course of the Left Subclavian Artery Leading to Aneurysm Formation and Thoracic Outlet Syndrome – A Case Report

(a). Left subclavian Angiogram showing aneurysmal dilatation of the left subclavian artery. (b). Line diagram showing the anomalous of the left subclavian artery deep to the middle scalene muscle (right side is normal).

(a). Per-operative finding of anomalous course of the left subclavian artery deep to the middle scalene muscle. (b). Line diagram depicting the per-operative finding of anomalous course of the left subclavian artery deep to the middle scalene muscle.