Synovial chondromatosis of the metacarpophalangeal joint.

We describe a case of synovial chondromatosis in a metacarpophalangeal joint with invasion of local structures. The degree of local tissue involvement was not demonstrated on the preoperative MRI scans. This case highlights that synovial chondromatosis can be invasive and that even the best preoperative imaging may not demonstrate this. Copyright 2002 The British Society for Surgery of the Hand.