Unusual Case of Long Head of Biceps Tendon Synovial Chondromatosis

INTRODUCTION: Synovial chondromatosis is a rare benign tumor involving the major joints. This condition results from metaplasia of synovium into chondrocytes leading to formation of multiple loose bodies. Extra articular glenohumeral joint synovial chondromatosis involving long head of biceps is very rare. CASE REPORT: A 38-year-old male presented with history of insidious onset, dull aching pain in right shoulder for 6 months. Clinicoradiological examination revealed calcific mass around the long head of biceps tendon. The calcific mass and loose bodies were removed en bloc. Histopathological examination concurred to be synovial chondromatosis. CONCLUSION: We hereby report a rare case of long head biceps tendon synovial chondromatosis of shoulder which was successfully treated by combined arthroscopic and open method. The results of surgical excision are excellent.