What is thoracic outlet syndrome?

Thoracic outlet syndrome (TOS) is the general term used to describe a condition caused when the nerves and blood vessels below your neck (between the collarbone and the first rib) are compressed. Types of thoracic outlet syndrome include:

• Neurogenic (neurological) thoracic outlet syndrome - occurs when the brachial plexus is compressed. The brachial plexus is a group of nerves that come from the spinal cord and control muscle movements and sensation in the shoulder, arm, and hand.
• Vascular thoracic outlet syndrome - occurs when one or more of the blood vessels (veins or arteries) under the […]

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