髋关节色素沉着绒毛结节性滑膜炎的MRI诊断

目的：探讨髋关节色素沉着绒毛结节性滑膜炎的MRI表现。方法：对8例髋关节PVNS患者行常规MRI检查,结合术后病理结果进行对照分析。结果：8例MRI均显示滑膜不同程度肿胀、增厚以及关节间隙软组织肿胀,增生的滑膜组织于T1WI上呈等信号～低信号,T2WI上呈低信号夹杂混杂信号。结论：PVNS的MRI表现具有一定的特征性,MRI可显示病变的范围和程度,能准确反映关节内外受侵情况,对本病的临床诊治具有较高价值。

MR imaging diagnosis of pigmented villonodular synovitis of hip joint

Objective：To analyze the magnetic resonance imaging（MRI） characteristics of pigmented villonodular synovitis（PVNS） in hip joint.Methods：Eight patients with PVNS were examined by MR Imaging.MRI findings were analyzed and correlated with the pathological results.Results：MR imaging demonstrated thickening of synovial membrane.MRI showed that,all the lesions in 8 cases appeared iso-or hypointense on T1WI and hypointense with mixed signal changes on T2WI.Conclusion：PVNS has certain characteristics on MRI and MRI can depict the extent and degree of the disease.Thus,MRI is highly valuable for diagnosis and treatment of the PVNS,which can accurately delineate the damage both inside and outside the joint.