| 乳腺叶状肿瘤MRI表现特征分析 |
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| 引用本文： | 张淑平,刘佩芳,鲍润贤. 乳腺叶状肿瘤MRI表现特征分析[J]. 临床放射学杂志, 2010, 29(2) |
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| 作者姓名： | 张淑平 刘佩芳 鲍润贤 |
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| 作者单位： | 天津医科大学附属肿瘤医院放射科,300060 |
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| 摘 要： | 目的分析乳腺叶状肿瘤(phyllodes tumors,PTs)MRI平扫、动态增强、扩散加权成像(DWI)和磁共振波谱(MRS)表现特征,提高对本病MRI诊断水平。资料与方法搜集2005年1月至2008年12月期间于我院行乳腺MRI检查并经手术病理证实的5例乳腺PTs,按照美国放射学会提出的乳腺影像报告和数据系统磁共振成像(BI-RADS-MRI)标准,回顾性分析病变的MRI表现,包括形态学、平扫T1WI及T2WI信号、动态增强表现及强化曲线类型、DWI信号及表观扩散系数(ADC)值和MRS表现特征。结果5例乳腺PTs病理诊断良性1例,交界性2例,恶性2例。MRI上4例表现为分叶状,1例为卵圆形;5例PTsMRI平扫T1WI均呈较低信号,T2WI呈高信号,其中1例内有低信号分隔;4例行动态增强检查的PTs于动态增强早中期(增强后第一至第三时相)呈快速渐进性强化,动态增强中后期时间-信号强度曲线3例呈平台型,1例呈轻度流出型;5例PTs于DWI上均呈高信号,ADC值低于正常乳腺组织,且低于鉴别乳腺良恶性病变的ADC界值;3例行MRS检查,均可见胆碱(Cho)峰。结论MRI检查有助于乳腺PTs的诊断,但确诊仍需...
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| 关 键 词： | 乳腺肿瘤 叶状肿瘤 磁共振成像 |
MRI Features of Phyllodes Tumors of the Breast |
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| ZHANG Shuping,LIU Peifang,BAO Runxian. MRI Features of Phyllodes Tumors of the Breast[J]. Journal of Clinical Radiology, 2010, 29(2) |
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| Authors: | ZHANG Shuping LIU Peifang BAO Runxian |
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| Abstract: | Objective To analyse the MRI features of phyllodes tumors and improve the diagnosis level. Materials and Methods MR images of 5 patients with phyllodes tumors confirmed by histopathology during Jan 2005 to Dec 2008 were analyzed retrospectively. According to Breast Imaging and Reporting Data System Magnetic Resonance Imaging (BI-RADS-MRI),MR findings included tumor shape,margin,size,signal intensity on T1-weighted and T2-weighted images before contrast,appearance of dynamic contrast enhancement (DCE-MRI),th... |
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| Keywords: | Breast tumor Phyllodes tumors Magnetic resonance imaging |
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