Figure 7a. Suprascapular nerve entrapment. Oblique coronal (a) spin-echo intermediate-weighted (2,000/20) and (b) fast spin-echo T2-weighted (3,000/70) MR images through the shoulder show a ganglion (arrow) in the spinoglenoid notch of the scapula. (c) Oblique coronal sagittal T2-weighted fat-suppressed fast spin-echo MR image (3,000/70) shows edema in the infraspinatus muscle (arrow) secondary to impingement of the suprascapular nerve by the ganglion in the spinoglenoid notch.