Primary synovial osteochondromatosis

Case contributed by Dr Matt Skalski


Ankle pain.

Patient Data

Age: 45 years old
Gender: Male

There are multiple, circular, similarly sized osseous densities located anteriorly at the level of the tibiotalar joint space, in an expected intracapsular location. 

Case Discussion

This case represents a classic example of primary synovial osteochondromatosis. The features that distinguish primary from secondary synovial osteochondromatosis include maintained joint space and no other associated degenerative changes at the joint involved. Also, the uniformity of the size of the synovial osteochondromas in this case favor primary over secondary, as in secondary there are usually multiple synovial osteochondromas that vary widely in size.

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Case information

rID: 28181
Published: 31st Mar 2014
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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