脑室内脑膜瘤12例的影像学表现分析  

Imaging Manifestations of 12 Cases with Intraventricular Meningiomas

作　　者：廖俊杰[1] 毕纯龙[2] 周翠屏[1] 朱文丰[1] 黄丽莹[1] LIAO Jun-jie;BI Chun-long;ZHOU Cui-ping(Department of Radiology,Huizhou Central People's Hospital,Huizhou 516001,Guangdong Province,China)

机构地区：[1]广东省惠州市中心人民医院放射科,广东惠州516001 [2]大庆油田总医院CT室,黑龙江大庆163001

出　　处：《中国CT和MRI杂志》2018年第1期34-35,39,共3页Chinese Journal of CT and MRI

基　　金：广东省惠州市科技计划项目(20150805)

摘　　要：目的探讨脑室内脑膜瘤影像学表现,为提高该病诊断的准确性提供重要参考依据。方法回顾性分析2010年5月-2014年2月我院收治的12例经手术病理证实的脑室内脑膜瘤患者的临床资料,行磁共振成像(MRI)检查,分析及总结其影像学特征。结果肿瘤均为单发,9例位于侧脑室(4例右侧侧脑室三角区,3例左侧侧脑室后角,2例左侧侧脑室三角区),2例三脑室,1例四脑室;病灶呈球形、不规则或分叶状肿块,边界清晰;T1WI为等信号(10例),略低信号(2例),T2WI等信号(8例),稍高信号(4例),信号较均匀,小片坏死(1例);T1WI增强扫描信号呈均匀或不均匀强化,DWI、Flair呈等低混杂或稍高信号。结论脑室内脑膜瘤的MRI影像学表现有一定特征性,为临床准确诊断提供重要参考依据。Objective To investigate the imaging findings of intraventricular meningiomas,and provide an important reference for improving the accuracy of diagnosis of the disease.Methods The clinical data of 12 intraventricular meningiomas patients confirmed with surgically and pathologically who were treated in our hospital between May 2010 and February 2014 were analyzed retrospectively.Magnetic resonance imaging(MRI)was performed in all patients,and the imaging findings were analyzed and summarized.Results All tumors were solitary,9 cases were located in the lateral ventricles(4 cases in the trigonum of rightlateral ventricles,3 cases in occipital horn of leftlateral ventricle,2 cases in the trigonum of left lateral ventricle),2 case in the third ventricle and 1 case in the fourth ventricle;The lesions were spherical,irregular or lobulated masses,with clear boundaries.There was equal signal(10 cases)and slightly low signal(2 cases)on T1WI,equal signal(8 cases)and slightly high signal(4 cases)on T2WI,the signal was homogeneous,and there was small necrosis(1 case).T1WI enhanced scan signal was homogeneous or inhomogeneous enhancement.DWI and Flair showed equal low mixed or slightly high signal.Conclusion The MRI findings of intraventricular meningiomas are special,which provide an important reference for clinical diagnosis.

关 键 词：脑室肿瘤 脑膜瘤 磁共振成像 影像表现 

分 类 号：R739.45[医药卫生—肿瘤]