Superior, middle, and inferior trunks of the brachial plexus travel with the subclavian artery through the interscalene gap, between the anterior and middle scalene muscles; (B) Superior piercing ...

Adson’s sign or Adson’s maneuver is used to diagnose thoracic outlet syndrome. The clinician has the patient extend their neck and turn their head to the side that is being tested.

Compression of the upper roots of the brachial plexus between the anterior and middle scalene muscles is really then cervical outlet syndrome. More common in swimmers and throwing athletes, ...

Superior, middle, and inferior trunks of the brachial plexus travel with the subclavian artery through the interscalene gap, between the anterior and middle scalene muscles; (B) Superior piercing ...