Also known as "Median Mononeuropathy"
Most common focal mononeuropathy
Results from compression of median nerve at wrist where it traverses the<unk><unk> 
Median nerve provides sensation to the palmar aspect digits 1-3 and radial side of 4th
Etiology: repetitive wrist flexion/extension, trauma, edema
Carpal tunnel syndrome
Spinal cord lesion
Anterior interosseous neuropathy
Cervical radicular pain
Posterior interosseous neuropathy
Thoracic outlet syndrome
Cauda equina syndrome
Multiple Sclerosis 