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UR Medicine / Neurosurgery / Services / Conditions / Thoracic Outlet Syndrome

 

Thoracic Outlet Syndrome

For more information, please visit our Peripheral Nerve Neurosurgery Program site or our Neuromedicine Pain Management Program site

Thoracic outlet syndrome (TOS) is a syndrome involving compression at the superior thoracic outlet involving compression of a neurovascular bundle passing between the anterior scalene and middle scalene. It can affect the brachial plexus (nerves that pass into the arms from the neck), and/or the subclavian artery or vein (blood vessels that pass between the chest and upper extremity).