Abstract
We report a case of a child who presented with a clinical history of 11 months of progressive pain and swelling in his right knee. Osteochondromatosis is a rare diseas, whose incidence is 1/100,000. It is a synovial proliferative disease associated with cartilage metaplasia resulting in sporadic multiple intra-articular and extra-articular loose bodies. Our focus is to report a rare case of synovial osteochondromatosis in a child successfully treated with arthroscopic surgery. Due to the rarity of the case, we aimed to remind the practicing surgeons of this diagnosis and share our management.