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下肢软组织滑膜肉瘤的CT及MRI诊断 被引量:3

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摘要 目的:探讨下肢软组织滑膜肉瘤的CT及MRI表现,进一步提高下肢软组织滑膜肉瘤的诊断率。方法:回顾性分析13例经手术病理证实的下肢软组织滑膜肉瘤患者的临床及影像学资料。结果:本组患者中,肿瘤位于膝关节周围9例,髋关节周围2例,踝关节周围2例;肿瘤直径6.7~13.8 cm,平均(9.12±4.67)cm。9例软组织肿块边界清楚,4例软组织肿块边界欠清楚。CT特征:肿瘤呈团块状或分叶状软组织影,肿瘤密度与周围肌肉密度相似,其内可见不规则的低密度区或钙化;3例肿瘤边缘见钙化灶。增强扫描示:肿瘤呈不均匀强化,其中2例可见异常增粗的动脉血管影。MRI特征:肿瘤呈团块状或分叶状软组织影,T1WI上与周围肌肉信号相比呈等或稍高不均匀信号;T2WI表现为以高信号或稍高信号为主的混杂信号,3例肿瘤内部可见低信号分隔;MRI增强后均表现为明显的不均匀强化。结论:下肢软组织滑膜肉瘤的CT及MRI表现具有一定的特征性,使用CT及MRI对下肢软组织滑膜肉瘤进行综合评价有助于提高其诊断率,值得临床上推广应用。
出处 《南京医科大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第12期1771-1773,共3页 Journal of Nanjing Medical University(Natural Sciences)
基金 江苏省高校优势学科建设工程资助项目(JX10231801)
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参考文献12

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