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颅内非典型室管膜瘤MRI表现与病理的对照研究 被引量:4

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摘要 目的:分析颅内非典型室管膜瘤的MRI表现与病理学特征之间的联系。方法:回顾性分析14例经病理学证实的颅内非典型室管膜瘤的MRI表现,所有病例均行MRI平扫及增强扫描。结果:(1)完全实性型3例,边界较清楚,平扫信号与脑灰质相似,增强扫描呈不均匀中度强化,瘤周无水肿;(2)部分实性型7例,边界欠清有浅分叶,平扫囊性部分信号类似脑脊液,实性部分呈混杂的稍长T1稍长T2信号,增强扫描呈轻到中度不均匀强化,瘤周无水肿,瘤内均有出血;(3)大囊型4例,病灶体积较大且呈偏心性生长,平扫囊性部分信号类似脑脊液,实性部分及囊壁类似于脑灰质,增强呈不均匀中度强化,瘤周均有水肿;(4)完全实性型及大囊型病理结果均为WHOⅡ级,部分实性型均为WHOⅢ级。结论:颅内非典型室管膜瘤常表现为完全实性、部分实性及大囊性3种类型,且具有较特异性MRI表现,并在一定程度上能够提示病理的类型。
出处 《实用医学杂志》 CAS 北大核心 2011年第9期1642-1644,共3页 The Journal of Practical Medicine
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