Department of Orthopedic Surgery, United States Military Hospital, Kuwait Naval Hospital, Camp Pendleton, California, USA.
Although ganglion cysts have been reported to arise from almost any joint, those arising from the glenohumeral joint producing an axillary mass are extremely rare. We report what we believe to be the eighth such case and describe its management. The unusual differential diagnosis and aids to diagnosis of axillary cysts are reviewed. Specific issues regarding axillary space ganglions are emphasized.