Thoracic outlet syndrome (TOS) is defined as a constellation of clinical symptoms caused by the entrapment of neurovascular structures (subclavian vessels and the brachial plexus) en route to the upper extremity via the superior thoracic outlet. TOS is classified into two categories as vascular and neurogenic. True neurogenic type TOS is a very rare entity. We present a case with true neurogenic type TOS.
Keywords: Neurogenic, thoracic outlet syndrome, electrophysiology