DOI: 10.36347/sjmcr.2018.v06i08.001

Pages: 495-499

Primary synovial osteochondromatosis is an uncommon benign condition involving mostly the large joints such as the knee, hip, and elbow characterized by proliferation of the synovium with cartilaginous metaplasia within the bursa, tendon and joints. The disease usually presents in three stages, the first phase is nonspecific with only intraarticular cartilage deposition without loose bodies, which presents with very non specific symptoms and easily missed based on clinical and radiological features. It’s relatively easier to diagnose the second and third phase which shows the presence of loose bodies in the joints. We present a case in a 40 year old male, who presented with a history of swelling and pain in the knee joint on and off, the disease diagnosed as early osteoarthritis based on clinical and radiological findings. The purpose of this case report is to document that histopathology is helpful in giving the correct diagnosis and managing the symptoms as the reported evidence of malignancy to synovial chondrosarcoma in the setting of synovial osteochondromatosis is around 6.4%.