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腮腺Warthin瘤的CT及MRI表现 被引量:12

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摘要 目的 :探讨腮腺Warthin瘤的CT及MRI表现特征,以提高对本病的诊断水平。方法 :回顾性分析经手术及病理证实的31例腮腺Warthin瘤患者的CT和MRI表现,分析病变的部位、大小、形态、数目、CT密度、MRI信号及强化特点。结果:31例患者共43个病灶,单发20例,多发11例;74.4%(32/43)的病灶位于腮腺浅叶后下极;95.3%(41/43)的病灶呈圆形或类圆形;90.7%(39/43)的病灶边缘清楚;33个病灶呈实性,10个呈囊实性。CT增强扫描呈均匀或不均匀强化,动脉期实性部分呈不同程度强化,CT值增加(42.3±17.1)HU;静脉期强化程度减低,CT值增加(25.4±9.8)HU。MRI平扫信号均匀或不均匀,T1WI呈等、稍低或稍高信号,脂肪抑制T2WI呈不均匀高信号或高、低混杂信号;增强扫描动脉期实性部分多呈明显强化(6个),静脉期强化程度减低。其中25个病灶内可见小血管通过或包绕。结论:腮腺Warthin瘤的CT和MRI表现有一定特征性,结合性别、年龄、病变部位,有助于术前作出定性诊断。
出处 《中国中西医结合影像学杂志》 2015年第4期441-443,共3页 Chinese Imaging Journal of Integrated Traditional and Western Medicine
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