Symptoms from compression of neurovascular bundle at<unk><unk> 
Neuro complications most common (95%), then venous compression (3%), and then arterial (1%)
Scalene triangle most often involved area: borders are anterior scalene, middle scalene and first rib
Thoracic outlet syndrome
Traumatic/Acute:
Cervical radiculopathy
Shoulder Dislocation
Central cord syndrome
Anterior shoulder dislocation
Epidural compression syndromes
Posterior shoulder dislocation