Spinoglenoid notch ganglion cyst


Spinoglenoid cyst is a ganglion arising in the spinoglenoid notch often related to SLAP lesion. The association of these cysts with SLAP lesions is formed by a valve mechanism, where the synovial fluid passes through the torn labrum and accumulates to form a cyst. Bony erosion caused by cyst compression may be remodeled after cyst resolution. The paralabral ganglion cysts are most frequently reported along the posterior and superior aspects of the glenohumeral joint and are uncommon anteriorly and inferiorly to the joint. Paralabral cysts emanating from posterosuperior labral tears may compress the suprascapular nerve and induce neuropathy. Symptomatic cysts require surgical treatment.

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