Spinoglenoid ganglion cyst mimicking rotator cuff tear

Abstract

Spinoglenoid notch ganglion cyst is a rare lesion located to the dorsum of glenohumeral joint, leading to entrapment of the suprascapular nerve causing infraspinatus atrophy. Other described features include weakness with external rotation and posterior shoulder tenderness. Here, we report a case of 34-year-old gentleman with vague shoulder pain exacerbated by overhead activities. MRI in patients with non-specific shoulder pain now makes earlier detection possible of lesions which may mimic rotator cuff tears.