Spinoglenoid Ganglion Cyst with isolated Infraspinatus Atrophy

Evidence of 3.5 x 1.5cm cystic lesion with minimal sepate in the spinoglenoid notch likely ganglion cyst with probable impingement of the suprascapular nerve. There is altered signal intensity and minimal atrophy of the infraspinatus muscle, likely implying isolated denervation of the infraspinatus muscle.