腮腺肿瘤的CT及MRI诊断及鉴别诊断  

CT and MRI diagnosis and differentiation of parotid tumors

作　　者：夏建东[1] 江新青[1] 彭国晖[1] 

机构地区：[1]广州医学院附属广州市第一人民医院磁共振室,广东广州510180

出　　处：《医学影像学杂志》2009年第9期1116-1119,共4页Journal of Medical Imaging

摘　　要：目的:探讨腮腺肿瘤的CT及MRI表现,旨在提高对腮腺肿瘤的诊断水平。方法:回顾性分析经病理证实的90例腮腺肿瘤的CT及MRI的表现。结果:90例腮腺肿瘤中,良性肿瘤74例(82.2%),恶性肿瘤16例(17.8%)。在CT/MRI上,良性肿瘤大部分表现为位于腮腺浅叶的圆形、椭圆形软组织肿块,边缘光整,密度/信号均匀;而恶性肿瘤,大部分位于腮腺深叶或跨叶,表现为不规则形软组织肿块,边缘不清,密度/信号不均匀,侵犯周围组织并伴淋巴结转移。结论:CT和MRI检查均能对腮腺肿瘤进行有效定位,并对诊断及鉴别诊断具有一定价值。Objective：To analysis the CT and MRI appearances of parotid tumors,and improve the cognition parotid tumors.Methods：The CT/MRI findings of in 90 cases with parotid tumors were retrospectively analyzed.Results：Among 90 cases,there were 74（74/90,82.2%） benign tumors,16（16/90,17.8%） malignant tumors.On CT and MRI,most benign tumors were located in the shallow lobe,round or oval in shape,well-defined,homogeneous or heterogeneous soft tissue mass;and most of malignant tumor were located in the deep lobe or deep-shallow lobe, irregular in shape, ill-defined, heterogeneous soft tissue mass, infiltration of adjacent structure and lymph node metastasis. Conclusion： CT and MRI both can well demonstrate the size, number and location of parotid tumors , and there is still helpful for the diagnosis, differentiation and therapeutic decision.

关 键 词：腮腺肿瘤 体层摄影术 X线计算机 磁共振成像 

分 类 号：R739.8[医药卫生—肿瘤] R814.42[医药卫生—临床医学]