| 恶性脑膜瘤的MRI表现分析 |
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| 引用本文： | 范新华,赵丽. 恶性脑膜瘤的MRI表现分析[J]. 医学影像学杂志, 2011, 21(11): 1639-1642 |
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| 作者姓名： | 范新华 赵丽 |
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| 作者单位： | 浙江省义岛市中心医院放射科 浙江义乌 322000 |
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| 摘 要： | 目的：探讨恶性脑膜瘤的MRI表现,提高其诊断准确率。方法：回顾分析67例经手术病理证实的恶性脑膜瘤临床、病理及MRI资料。结果：肿瘤形态多呈分叶状（26/67）、蘑菇状（7/67）及不规则状（29/67）;肿瘤边缘模糊或部分边缘与周围脑组织、邻近组织分界不清：表现为单纯蛛网膜受侵犯26例、硬脑膜受侵犯18例、脑组织受侵犯8例、脑外组织受侵犯4例;肿瘤信号改变：T1WI呈等、低信号60例、等、高信号3例及较均匀信号4例,T2WI呈不均匀信号64例、较均匀信号3例,增强后均显示不均匀强化;肿瘤恶性度与瘤周水肿具有一定的关联性,瘤周水肿形态表现为：圆晕状水肿20例、指压状水肿18例、不规则水肿24例。结论：恶性脑膜瘤的MRI表现具有一定特征性,但需要注意与良性脑膜瘤鉴别。
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| 关 键 词： | 脑膜瘤 磁共振成像 |
MRI features of malignant meningioma |
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| FAN Xin-hua,ZHAO Li. MRI features of malignant meningioma[J]. Journal of Medical Imaging, 2011, 21(11): 1639-1642 |
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| Authors: | FAN Xin-hua ZHAO Li |
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| Affiliation: | FAN Xin-hua,ZHAO Li Department of Radiology,Yiwu Central Hospital of Zhejiang Province,Yiwu 322000,P.R.China |
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| Abstract: | Objective:To explore the MRI features of malignant meningioma.Methods:67 cases of malignant meningiomas proved by pathology and operation were analyzed retrospectively.Results:Most of the tumors shape showed lobulated(26/67),mushroom(7/67) and irregular(29/67).The edge of tumor was blur or part of the edge was unclear around the brain tissue and close to organizational boundaries.The were 26 cases expressed as a simple arachnoids invaded,18 cases as dural invaded 8 cases as brain tissue invaded and 4 cases ... |
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| Keywords: | Meningioma Magnetic resonance imaging |
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