| 少见类型脑膜瘤的影像学特点及误诊分析 |
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| 引用本文： | 郭丽萍,李文菲,辛晓敏,牛晨,马雪英,梁丰丽,韩芳,郭苏晋,张明. 少见类型脑膜瘤的影像学特点及误诊分析[J]. 现代肿瘤医学, 2016, 0(8): 1284-1288. DOI: 10.3969/j.issn.1672-4992.2016.08.034 |
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| 作者姓名： | 郭丽萍 李文菲 辛晓敏 牛晨 马雪英 梁丰丽 韩芳 郭苏晋 张明 |
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| 作者单位： | 1. 西安交通大学第一附属医院影像科,陕西 西安,710061;2. 大连医科大学附属大连市第三人民医院影像科,辽宁大连,116033;3. 解放军323医院影像科,陕西西安,710000 |
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| 摘 要： | 目的:对不典型脑膜瘤患者的临床及影像学特点进行分析,提高其术前诊断正确率.方法:回顾性分析21例经病理证实或术前误诊为脑膜瘤病例的影像及临床资料.结果:21例病变中,15例脑膜瘤术前被误诊为胶质瘤7例,室管膜瘤、血管外皮细胞瘤及听神经瘤各2例,PNET及颅骨肿瘤各1例;其中13例病灶呈单发且信号不均,12例呈不均匀轻度强化,8例可见脑膜尾征,2例多灶性脑膜瘤同时累及胼胝体.其他病变被误诊为脑膜瘤者6例,分别为脑血管畸形伴出血、朗格汉斯细胞增生症、海绵状血管瘤、颅咽管瘤、胶质母细胞瘤及血管周细胞瘤各1例.结论:在准确定位的前提下,加深对发生于少见部位及特殊病理类型脑膜瘤的认识,可有效减低术前误诊率.
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| 关 键 词： | 不典型脑膜瘤 误诊 磁共振成像 |
Analysis of imaging characteristics and misdiagnosis for atypical meningioma |
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| Abstract: | Objective:To analyze the clinical and imaging characteristics of atypical meningioma,improve the ac-curacy of preoperative diagnosis. Methods:In order to analyze misdiagnosis causes and imaging traits of atypical men-ingioma,a retrospective analysis of 21 cases confirmed or misdiagnosed as meningioma has been made. Results:In 21 cases,15 cases misdiagnosed as meningiomas were confirmed as glioma for 7 cases,ependymoma,hemangiopericytoma and acoustic neuroma for 2 cases,PNET and skull tumor for 1 case respectively. 13 cases of them showed single lesion with uneven intensity,12 cases with uneven and slight enhancement,8 cases with dural tail sign. Some cases of cere-brovascular malformation,langerhans cell hyperplasia,cavernous hemangioma,craniopharyngioma,glioblastoma and hemangiopericytoma were misdiagnosed as meningioma preoperatively. Conclusion:On the premise of accurate posi-tioning,deepening the understanding of meningiomas with rare location and special pathological types can effectively reduce the preoperative misdiagnosis rate. |
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| Keywords: | atypical meningioma misdiagnosis magnetic resonance imaging( MRI) |
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