Proliferation of islands of irregular cellular cartilage in the synovium of a joint, without underlying arthritis
Incidence
- Occurs usually in 2nd to 7th decades
Clinically
- Pain and stiffness of gradual onset in joint
- May have locking
X-Rays
- Multiple loose bodies
Pathology
- Foci of chondromatosis and cytologic aplasia
Treatment
- Open or arthroscopic removal of loose bodies +/- synovectomy
- Frequent local recurrence after resection