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Case Reports
. 2012 May;20(5):937-40.
doi: 10.1007/s00167-011-1662-2. Epub 2011 Sep 13.

Tuberculous arthritis of the knee joint mimicking pigmented villonodular synovitis

Dae-Hee Lee  1 , Dong-Ki Lee, Soon-Hyuck Lee, Jong-Hoon Park, Chul-Hwan Kim, Seung-Beom Han
Affiliations
Case Reports

Tuberculous arthritis of the knee joint mimicking pigmented villonodular synovitis

Dae-Hee Lee et al. Knee Surg Sports Traumatol Arthrosc. 2012 May.

Abstract

Tuberculous arthritis is difficult to diagnose early because of its atypical insidious clinical manifestations and non-specific imaging findings. Specifically, monoarticular tuberculosis of the knee may mimic pigmented villonodular synovitis (PVNS). The present report describes a young patient with tuberculous arthritis of the knee. Proper diagnosis was delayed due to magnetic resonance imaging findings, such as hemosiderin deposits and a nodular mass around the knee joint, suggesting the diffuse type of PVNS. These findings suggest that the first step in the diagnosis of tuberculous knee arthritis is to have a high index of suspicion.

Level of evidence: IV.

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References

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