Synovial chondromatosis

Last revised by Mateusz Wilczek on 12 Oct 2023

Synovial chondromatosis (osteochondromatosis or synovial chondrometaplasia) also known as Reichel syndrome, is a disorder characterized by loose cartilaginous bodies which may, or may not be calcified or ossified.

It is classified under two main types:

  1. primary synovial chondromatosis: predominantly monoarticular disorder of unknown etiology

  2. secondary synovial chondromatosis: resulting in intra-articular loose bodies from causes such as trauma, osteoarthrosis and neuropathic arthropathy

In the secondary type, articular nodules are often large, vary widely in size, and frequently ossify, in contrast to the smaller and uniformly sized in the primary type.

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