Siderotic synovitis

Last revised by Henry Knipe on 13 Oct 2022

Siderotic synovitis is a condition that can occur with chronic haemarthroses.

Siderotic synovitis is characterized by rusty synovial pigmentation and hyperplasia but with an absence of foam cells and multinucleated giant cells which are seen in tenosynovial giant cell tumors.

May be seen as a focal or diffuse proliferation of the synovium. Signal characteristics can mimic tenosynovial giant cell tumors and include 1,4

On MRI consider:

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