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Clin Orthop Relat Res. 2003 Jun;(411):124-8.

Suprascapular nerve entrapment secondary to a lipoma.

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Leni & Peter May Department of Orthopaedics, The Mount Sinai School of Medicine, New York, NY 10029, USA.


Many causes of suprascapular nerve entrapment have been described including a small spinoglenoid notch, a tight ligament, boney spurs, and ganglion cysts. In the current patient, suprascapular nerve entrapment was caused by a lipoma in the suprascapular notch. The patient presented with painful shoulder motion that could have been attributed to rotator cuff and acromioclavicular joint disease. However, magnetic resonance imaging and electromyography were consistent with suprascapular nerve entrapment. Treatment of the rotator cuff disease and excision of the lipoma led to resolution of the patient's symptoms. This case is presented as an unusual cause of suprascapular nerve entrapment with a review of its course and anatomy.

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