Primary synovial chondromatosis

Case contributed by Islam Mohamed El Gezeiry
Diagnosis certain

Presentation

Bilateral knee pain

Patient Data

Age: 70 years
Gender: Female
x-ray
Frontal
Lateral
Lateral
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Info

Multiple globular calcific lesions are seen around the right knee anteriorly and the popliteal fossa posteriorly (chondromatosis of a Baker cyst synovial membrane) with medial knee joint compartment involvement.

Case Discussion

Primary synovial chondromatosis (or Reichel syndrome) is a benign mono-articular disorder of unknown origin that is characterised by synovial metaplasia and proliferation resulting in multiple intra-articular cartilaginous loose bodies of relatively similar size, not all of which are ossified

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