Synovial Osteochondromatosis of the elbow presenting with ulnar nerve neuropathy

Synovial chondromatosis is an uncommon disorder in which cartilaginous material is formed within synovial tissue. The cartilaginous nodules may undergo enchondral ossification, described as synovial osteochondromatosis. The nodules may be shed from the synovium and become intra-articular loose bodies. The presenting symptoms are usually diffuse discomfort in the affected joint and decreased range of motion with an accompanying gritty or locking sensation. The authors present the case of a young man with elbow synovial osteochondromatosis associated with ulnar nerve neuropathy.