Chronic, progressive pain and swelling of the affected joint are exacerbated by physical activity. Joint effusion and limited range of motion are common associated features. It affects primarily large joints, including knee (>50% of cases), elbow, hip, and shoulder. SOC is twice as common in men as women. Some patients have intra-articular bodies resting in stable positions within joint recesses or bursae. These patients may be asymptomatic, with SOC merely as an incidental finding at imaging. Complications Malignant transformation to synovial chondrosarcoma. This is a very rare complication occurring in chronic cases. Treatment entails synovial excision and total joint replacement. Clicking, grating, or locking may result from acute mechanical problems due to intra-articular bodies within the affected joint. Locking may destroy articular cartilage, resulting in secondary osteoarthritis. Symptoms such as joint stiffness and aching are the result of osteoarthritis that sets in after years of persistent joint irritation.
Synovial osteochondromatosis
Osteochondroma
Synovial chondromatosis
Tenosynovial giant cell tumor
Meniscal cyst
Myositis ossificans
Osteofibrous dysplasia
Peripheral ossifying fibroma