Pigmented villonodular synovitis (PVNS)

Case contributed by Assoc Prof Frank Gaillard

Hyperdense expansion of the joint capsule with bony erosions. 

Nodular hypertrophy of the knee synovium with low signal on both T1 and T2 weighted sequences, consistent with pigmented villonodular synovitis. Note the erosions of the adjacent bones. 

Case Discussion

Case courtesy of Bob Cook, MD. Western Memorial Regional Hospital Corner Brook, Newfoundland.

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Case information

rID: 7815
Published: 14th Dec 2009
Last edited: 3rd Jul 2021
Inclusion in quiz mode: Included