Pigmented villonodular synovitis

Case contributed by Dr J. Ray Ballinger

Presentation

Knee pain.

Patient Data

Age: 29
Gender: Male
Modality: MRI
Masses are noted in the joint space with focal areas of low signal on both T1 and T2 weighted sequences representing hemosiderin-laden macrophages within the nodules. Red arrows point out some of the nodules. The synovial lining, well seen on the axial images is also dark and thickened.

Case Discussion

Pigmented villonodular synovitis (PVNS) results from synovial proliferation and haemosiderin deposition. 

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Case Information

rID: 24618
Case created: 31st Aug 2013
Last edited: 18th Sep 2015
Inclusion in quiz mode: Excluded

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