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Brachial plexus compression by a long head of the biceps tendon ganglion in the setting of anatomic total shoulder arthroplasty: a case report

MOJ Orthopedics & Rheumatology
Gary Ulrich, Srinath Kamineni


Case: A 59-year-old female with a history of chronic left shoulder pain presented with a chief complaint of a constant, “burning” sensation in the left chest and shoulder region. On MRI, a large cystic structure originating from the biceps tendon was noted. Surgical exploration confirmed a ganglion cyst to be encroaching upon and compressing the brachial plexus and axillary artery against the chest wall. 12 months after resection of the cyst, the patient remains pain-free. Conclusion: Diffuse arm pain can stem from a variety of different pathologies. In this case, timely diagnosis of a unique pathology contributed to resolution of symptoms. Level of Evidence: Level V


brachial plexus, ganglion cyst, osteoarthritis, total shoulder arthroplasty, case report