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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Research of this case was performed at Korea University Anam Hospital Medical Center.
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Lee, DH., Lee, DK., Lee, SH. et al. Tuberculous arthritis of the knee joint mimicking pigmented villonodular synovitis. Knee Surg Sports Traumatol Arthrosc 20, 937–940 (2012). https://doi.org/10.1007/s00167-011-1662-2
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DOI: https://doi.org/10.1007/s00167-011-1662-2