| 中枢神经系统黑色素细胞肿瘤的MRI诊断 |
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| 引用本文： | 郑兰,曹惠霞,韩立新,成丽娜,汪文胜.中枢神经系统黑色素细胞肿瘤的MRI诊断[J].医学影像学杂志,2011,21(6):819-822. |
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| 作者姓名： | 郑兰 曹惠霞 韩立新 成丽娜 汪文胜 |
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| 作者单位： | 1. 广州军区广州总医院MRI室,广州医学院,广东广州510010
2. 广东三九脑科医院放射科,广东广州,510510 |
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| 摘 要： | 目的：探讨中枢神经系统黑色素细胞肿瘤的MRI特征。方法：回顾性分析16例经手术病理证实的中枢神经系统黑色素细胞肿瘤的临床资料及MRI资料,观察肿瘤MRI上的形态学特征及信号表现。结果：16例黑色素细胞肿瘤,男10例,女6例。年龄17～55岁。肿瘤位于颈段椎管内3例,额叶3例,颞叶2例,桥脑小脑角区1例,鞍区1例,小脑半球2例,脑内及脑膜多发者3例,全脑脊膜1例。肿瘤发生于颅底脑外者占17%,发生于近颅底脑实质者占43%。MRI信号特征典型者6例,不典型者10例,其表现为短T1等T2信号、或不均匀短T1等T2信号,或因瘤体卒中而呈囊实性混杂信号,增强扫描呈不均匀强化。结论：中枢神经系统黑色素细胞肿瘤可不具典型的MRI信号特征。对于发生于颅底及颈段软脊膜的有混杂T1或T2信号的肿瘤,在鉴别诊断时应考虑到该瘤的可能。
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| 关 键 词： | 黑色素细胞肿瘤 中枢神经系统 磁共振成像 |
MRI diagnosis of melanocytic tumors in central nervous system |
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| ZHENG Lan,CAO Hui-xia,HAN Li-xin,CHENG Li-na,WANG Wen-sheng.MRI diagnosis of melanocytic tumors in central nervous system[J].Journal of Medical Imaging,2011,21(6):819-822. |
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| Authors: | ZHENG Lan CAO Hui-xia HAN Li-xin CHENG Li-na WANG Wen-sheng |
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| Institution: | ZHENG Lan1,CAO Hui-xia1,HAN Li-xin1,CHENG Li-na2,WANG Wen-sheng21.Department of MRI,Guangzhou General Hospital of PLA1,Guangzhou Medical College,Guangzhou 510010,P.R.China2.Department of Radiology,Guangdong 999 Brain Hospital,Guangzhou 510510,P.R.China |
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| Abstract: | Objective:To summarize the MRI features of melanocytic neoplasm in central nervous system(CNS).Methods:MRI and clinical data of 16 patients with surgically and pathologically proved melanocytic tumors in CNS were retrospectively reviewed.The tumor morphological features and signal intensity on MRI were assessed.Results:There was 10 male and 6 female,aged from 17 to 55 years.The lesions were located in cervical spinal canal and in frontal lobe each in 3 patients,in temporal lobe and in cerebellar hemisphere ... |
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| Keywords: | Melanocytic neoplasm Central nervous system Magnetic resonance imaging |
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