Objective To investigate the MRI diagnostic valuation of pigmented villonodular synovitis (PVNS) of knee joint.

目的探讨MRI对膝关节色素沉着绒毛结节性滑膜炎(PVNS)的诊断价值。

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Methods High-frequency ultrasonic findings in 17 cases with PVNS were analyzed and a comparison between surgical and pathological results was made.

方法分析17例PVNS的高频超声表现，并与手术病理结果进行对照分析。

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Purpose To research the pathogenesis and mechanism of bone erosion and the imaging characters of pigmented villonodular synovitis (PVNS) of the knee.

目的探讨膝关节色素沉着绒毛结节滑膜炎(PVNS)的发病与骨破坏机制、影像特征。

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