My 23-year old daughter was diagnosed with synovial chrondromatosis. What in the world is this? She lives in another state and we are having problems getting any information about this condition. What can you tell us?

Synovial chondromatosis is a rare condition, especially in someone so young. Most patients affected are in their 40s and older. It is also known as articular chondrosis and synovial chondrosis.

The main area affected is the synovium, a lining around the joint that holds the joint fluid inside the joint. The knee is affected most often, but the hip, shoulder, and elbow can also be involved.

On X-ray or CT scan there are grape-like clusters of cartilage that are loose and free to move about inside the joint. There may be just a few fragments, but sometimes there can be 100s.

Treatment is usually needed to remove the tissue, but the problem can come back. If they aren't taken out, these loose bodies can cause damage to the joint.

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