Atrophy of the infraspinatus muscle caused by a suprascapular ganglion.
METHODS
Herein is reported a case of a 21-year-old ice hockey player with a suprascapular ganglion causing atrophy of the infraspinatus muscle.


CONCLUSIONS
Lesions of the suprascapular nerve can be caused by trauma of compression. While the suprascapular nerve entrapment syndrome results in atrophy of both the supraspinatus and the infraspinatus muscles, compression of the nerve distal to the spinoglenoid notch leads to isolated weakness of the infraspinatus muscle.
Department of Sportstraumatology, Swiss Sports School, Magglingen, Switzerland.
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Biedert
D000328:Adult; D001284:Atrophy; D006688:Hockey / Q000293:injuries*; D006801:Humans; D004204:Joint Dislocations / Q000150:complications; D008297:Male; D018908:Muscle Weakness / Q000209:etiology; D018482:Muscle, Skeletal / Q000473:pathology*; D009408:Nerve Compression Syndromes / Q000209:etiology; D012540:Scapula / Q000294:innervation; D012782:Shoulder; D000070599:Shoulder Injuries; D013581:Synovial Cyst / Q000150:complications*