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色素沉着绒毛结节性滑膜炎的MRI诊断 被引量:1

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摘要 目的探讨色素沉着绒毛结节性滑膜炎(Pigmented Villonodular Synovitis'PVS)在MRI中的表现。方法回顾分析14例经病理学诊断确诊的PVS病例患者,观察其MRI表现。结果 14例患者的X线片及MRI片图像满意。在X线平片上PVS表现为关节的对位正常,关节间隙显示正常,周围软组织的肿胀并可见密度增高影,部分可见不规则骨质侵蚀破坏及囊状骨质缺损区。PVS在MRI中病变呈局限性或弥漫性分布,T1WI呈等低信号,T2WI呈混杂低信号、高信号、低信号;增强扫描中明显不均质强化。1例踝关节病变为局限性结节,表现为T1WI等信号,T2WI低信号,边缘较清晰。关节腔内可见不同程度的关节积液,其中8例可见骨质受压或囊状骨缺损表现。结论 PVS的MRI表现敏感具有特征性,诊断符合率较高,具有明显的诊断价值。
出处 《医药论坛杂志》 2012年第1期108-109,共2页 Journal of Medical Forum
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