Siderotic synovitis of the knee

Case contributed by Dr Roberto Schubert

Presentation

Muscle fibre tear in the back of the knee while dancing.

Patient Data

Age: 25
Gender: Female
MRI

Diffuse synovial thickening with hypointense signal on both T1 and T2 weighted images. "Blooming" on T2* gradient echo images due to susceptibility effects of haemosiderin deposits. No focal or nodular lesions. The tibio.fibular joint is also affected. Recent haemorrhage on the medial gastrocnemius head.

Case Discussion

Incidental finding. A coagulation disorder was hitherto unknown.

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Case information

rID: 24711
Case created: 6th Sep 2013
Last edited: 9th Oct 2015
Inclusion in quiz mode: Included

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