Suprascapular nerve compression by a ganglion at the suprascapular notch

Although uncommon, entrapment of the suprascapular nerve either at the suprascapular or spinoglenoid notch gives a characteristic clinical picture. Ganglia are the most likely cause. Investigations are valuable to confirm the focus and cause. Neurolysis and removal of the ganglion, prior to permanent nerve damage, leads to a rapid improvement in symptoms and function. This paper describes a case involving supraspinatus and infraspinatus muscle wasting due to compression of the suprascapular nerve by a ganglion.