摘要
目的探讨膝关节色素沉着绒毛结节性滑膜炎(pigmented villonodular synovitis.PVNS)的MRI表现及诊断价值。方法回顾性分析12例经手术病理证实的膝关节PVNS的MRI影像表现并进行总结。结果色素沉着绒毛结节性滑膜炎主要表现为滑膜不规则结节状增生、增生的滑膜和结节内含铁血黄素沉着、关节积液和邻近骨侵蚀。结论滑膜不规则结节状增生和含铁血黄素沉着为色素沉着绒毛结节性滑膜炎特征性的MRI表现。MRI是诊断PVNS的最佳检查方法。
Objective To evaluate the value of MRI in diagnosing pigmented villonodular synovitis（PVNS）.Methods Total 12 patients of PVNS confirmed by operation and pathology were retrospectively analyzed and summarized.Results The main MRI signs of pigmented villonodular synovitis included irregular and nodular synovial proliferation,low-signal areas consistent with hemosiderin deposition,hydrarthrosis,and well-defined bony crosion.Conclusion lrregular,nodular synovial proliferation and hemosiderin deposition are the two main features of pigmented villonodular synovitis.MRI is the most valuable method for diagnosing PVNS.
出处
《医药论坛杂志》
2010年第4期22-24,共3页
Journal of Medical Forum
