Suprascapular neuropathy

Suprascapular neuropathy or suprascapular nerve entrapment occurs if the suprascapular nerve is compressed as it passes through the suprascapular notch or spinoglenoid notch.

Clinical presentation

Non-specific posterior shoulder pain and weakness.

Pathology

Etiology

Radiographic features

MRI
  • direct features of entrapment
    • swelling, increased size and signal of the nerve
    • visualization of the causative factor
  • indirect features of entrapment via features of muscle atrophy or acute denervation
    • supraspinatus and infraspinatus muscles: compression at the suprascapular notch
    • infraspinatus muscle only: compression at the spinoglenoid notch
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