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• Clinical Article •
Analysis on the magnetic resonance imaging features of gouty arthritis of the knee
ZHANG Yuan-yuan  ZHAO Jian-nong  CHEN Jun-hui  JIA Ying  LIANG Na 

DOI:10.12015/issn.1674-8034.2016.05.011.


[Abstract] Objective: To analyse the MRI features of gouty arthritis of the knee and discuss its diagnosis value.Materials and Methods: Twenty-one cases with gouty arthritis of the knee underwent knee MRI plain scan. MRI findings were retrospectively reviewed.Results: All of the 21 cases showed synovial thickness, hydrarthrosis, and soft tissue swelling. Twelve patients had the bone erosion which located at the femoral condyle, tibial plateau, patella, fibular head and showed hypointensity on T1WI and hyperintensity on T2WI. Bone edema was seen in 3. Eleven cases had the gouty tophus which located at the patella bursa, patellar fat pad, joint cavity, intercondylar fossa, femoral condyle or surrounding, patella or before, and tibial platform or before. The gouty tophus displayed as acicular, strip, nodosity or mass. Magnetic resonance signals had no specificity. Gouty tophus showed hypointensity (n=4), iso-/hypo- intensity (n=7) on T1WI, hypointensity (n=2), slight hyperintensity (n=5), and hypo-/slight hyper-intensity (n=4) on T2WI.Conclusions: To the early stage of gout arthritis of the knee, MRI can sensitively observe synovial thickeness, hydrarthrosis and soft tissue swelling, but no specificity. However, diagnostic specificity of MRI for the knee arthritis associated with the bone erosion and the gouty tophi is high.
[Keywords] Arthritis, gouty；Knee joint；Magnetic resonance imaging

ZHANG Yuan-yuan Department of Radiology, the Second People’s Hospital of Chengdu, Chengdu 610017, China

ZHAO Jian-nong* Department of Radiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China

CHEN Jun-hui Department of Radiology, the Second People’s Hospital of Chengdu, Chengdu 610017, China

JIA Ying Department of Radiology, the Second People’s Hospital of Chengdu, Chengdu 610017, China

LIANG Na Department of Radiology, the Second People’s Hospital of Chengdu, Chengdu 610017, China

*Correspondence to: Zhao JN, E-mail: zxr20101229@163.com

Conflicts of interest   None.

Received  2016-01-19
Accepted  2016-03-28
DOI: 10.12015/issn.1674-8034.2016.05.011
DOI:10.12015/issn.1674-8034.2016.05.011.

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