Thoracic Outlet Syndrome (TOS) refers to a group of disorders caused by compression of the neurovascular bundle, consisting of the Brachial plexus and the nerves arising from it, the subclavian artery, and the subclavian vein, at the shoulder girdle[^1].
Etiology
Depending on the cause, TOS is classified as neurogenic, venous, or arterial TOS[^1].