Ganglion Cyst Of The Shoulder - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim’s educational animated video describes ganglion cysts - shoulder.

Ganglion cysts can be important when they are located around the shoulder, especially when they are located in the suprascapular notch and the spinoglenoid notch. The suprascapular nerve passes under the transverse scapular ligament at the suprascapular notch. The transverse scapular artery runs above the transverse scapular ligament. The artery and nerve joint and then pass through the spinoglenoid notch under the inferior scapular ligament. The suprascapular nerve gives branches to the supraspinatus muscle and branches to the infraspinatus muscle.
Nerve compression from a ganglion cyst at the suprascapular notch affects both the supraspinatus and infraspinatus muscles, causing a decrease in abduction and loss of external rotation of the shoulder. Nerve compression at the spinoglenoid notch affects only infraspinatus muscle, causing loss of external rotation of the shoulder with the arm to the side. Spinoglenoid notch compression is usually associated with cysts and ganglia. In addition to compression of the suprascapular nerve, these patients may also have associated posterior labral tears.

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