Rare Case of Extra-articular Synovial Chondromatosis of Biceps Tendon Sheath in 8 years Male Child

摘要

Introduction:Primary synovial osteo chondromatosis (PSOC) is chondroid metaplasia with multi¬nodular proliferation of the synovial lining of a diarthrodial joint, bursa, or tendon sheath. It usually occurs in third-fifth decade and shoulder joint involvement is infrequent. It is very rare in children and primary extraarticular PSOC of the shoulder has been reported very rarely in children.