Primary synovial chondromatosis of the shoulder followed for 11 years after arthroscopic surgery: A case report

We report a case of primary synovial chondromatosis of the shoulder (Milgram classification, stage III) in a 25-year-old woman. She underwent arthroscopic removal of multiple loose bodies and partial synovectomy. Histological findings revealed primary synovial chondromatosis. Eleven years after surgery, the clinical results have been excellent with no recurrence, although X-ray showed slight degenerative changes of the glenohumeral joint. This is the first report of primary synovial chondromatosis of the shoulder observed over a 10-year follow-up period after arthroscopic surgery.