膝关节色素沉着绒毛结节性滑膜炎的MRI表现  

The MRI performance of knee pigmented villonodular synovitis

作　　者：梁庆乐[1] 

机构地区：[1]广西壮族自治区玉林市第一人民医院放射科,广西玉林537000

出　　处：《中国医药导报》2011年第20期148-149,共2页China Medical Herald

摘　　要：目的:提高对膝关节色素沉着绒毛结节性滑膜炎(PVNS)的MRI影像表现的认识。方法:回顾性总结分析20例经病理证实的膝关节色素沉着绒毛结节滑膜炎,包括临床表现、影像学检查。扫描序列为矢状位T1WI、T2WI-SPAIR、3D-WATSc,冠状位T1WI,轴位T2WI。结果:20例患者中弥漫型15例,局限型5例。PVNS主要表现为滑膜不规则结节状增生或弥漫性增生,增生的滑膜和结节内沉着含铁血黄素,关节内外结构可受侵犯。结论:PVNS所致的含铁血黄素沉着在MRI上具有特征性的斑点状或小结节状T1WI及T2WI低信号,对诊断本病有较大帮助。Objective：To improve the MRI imaging understanding of the knee joint pigmented villonodular synovitis（PVNS）.Methods：Retrospectivly analyzed 20 cases who were confirmed by pathology pigmented villonodular synovitis of the knee,included clinical manifestations,imaging examinations.All patients were scanned the sequence sagittal T1WI,T2WI-SPAIR,3D-WATSc;coronal T1WI;axial T2WI.Results：20 patients,15 cases of diffuse,localized in 5 cases.PVNS synovial was mainly registered as irregular nodular hyperplasia or diffuse hyperplasia,nodular hyperplasia of the synovium and hemosiderin within the calm,joint internal and external structure could be violated.Conclusion：Hemosiderosis caused by PVNS has characteristic spots or small nodules with low signal T1WI and T2WI in MRI,which will be helpful to the diagnosis of this disease.

关 键 词：膝关节 色素沉着绒毛结节性滑膜炎 MRI 

分 类 号：R445.2[医药卫生—影像医学与核医学]