| 许蕾,许道洲.颅内不典型脑膜瘤的MRI表现及误诊分析[J].中国医学影像技术,2015,31(6):831~835 |
| 颅内不典型脑膜瘤的MRI表现及误诊分析 |
| MRI findings and misdiagnosis of intracranial atypical meningioma |
| 投稿时间：2015-01-10 修订日期：2015-03-10 |
| DOI：10.13929/j.1003-3289.2015.06.007 |
| 中文关键词: 脑膜瘤 磁共振成像 不典型 误诊 |
| 英文关键词:Meningioma Magnetic resonance imaging Atypical Diagnostic errors |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨颅内不典型脑膜瘤的MRI表现,分析其误诊原因。方法 回顾性分析9例经手术病理证实的不典型脑膜瘤的MRI表现、病理及临床资料。结果 9例肿瘤位于大脑凸面4例,大脑镰旁2例,幕下横窦旁、桥小脑角区及桥延交界区各1例。本组误诊为胶质瘤4例、转移瘤2例、神经鞘瘤2例、海绵状血管瘤1例。结论 颅内不典型脑膜瘤MRI表现多样,在观察肿瘤基本信号特征的基础上进一步分析肿瘤与临近组织之间的关系、结合肿瘤的发病部位、注重少见病理亚型脑膜瘤的MRI信号特点有助于提高不典型脑膜瘤的诊断准确率。 |
| 英文摘要: |
| Objective To explore MRI manifestations of intracranial atypical meningioma and to analyze the reasons of misdiagnosis. Methods Clinical data and MRI features of 9 patients with intracranial atypical meningioma proved by pathology were retrospectively analyzed. Results Of 9 cases, 4 cases located in brain convexity, 2 cases located in parasagittal and parafalcine, 3 cases located in transverse sinus, cerebellopontine angle region, pontobulbar region, respectively. Before operations, 4 cases were misdiagnosed for gliomas, 2 cases for neurogenic tumors, 2 cases for metastatic tumors, 1 case for cavernous hemangioma. Conclusion MRI appearances of intracranial atypical meningioma are variable and easy to be misdiagnosed. On the basis of observation of the tumors basic signal characteristics, further analysis of the relationship between tumors and their adjacent tissues, sites of tumors, MRI signal features of rare pathological subtypes of meningioma can contribute to improve the diagnosis accuracy of atypical meningioma. |
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