musculoskeletal and connective tissue disorders
Joint Tumors
Synovial chondromatosis
Synovial chondromatosis (previously called synovial osteochondromatosis) is considered metaplastic synovium. It is characterized by numerous calcified cartilaginous bodies in the synovium, which often become loose. Each body may be no larger than a grain of rice, in a swollen, painful joint. Malignant change is very rare. Recurrence is common. Diagnosis of synovial chondromatosis is by imaging, usually CT or MRI. Treatment of synovial chondromatosis may be symptomatic, but if mechanical symptoms are prominent, arthroscopic or open removal of the bodies or synovium is warranted. 