| 颅内毛细胞型星形细胞瘤的MRI诊断 |
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| 引用本文： | 阎静,成官迅,朱晓军,刘国顺,虞康惠,张刚.颅内毛细胞型星形细胞瘤的MRI诊断[J].中国临床医学影像杂志,2011,22(6):381-384. |
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| 作者姓名： | 阎静 成官迅 朱晓军 刘国顺 虞康惠 张刚 |
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| 作者单位： | 1. 南方医科大学南方医院影像中心,广东,广州,510515
2. 广东省中医院放射科,广东,广州,510120 |
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| 摘 要： | 目的：探讨颅内毛细胞型星形细胞瘤（PA）的MRI特征，以提高对此病的认识。方法：回顾性分析本院经手术病理证实的18例PA的MRI平扫及增强资料。结果：位于中线结构9例（视神经及视交叉5例，脑干2例，下丘脑1例，第四脑室1例），小脑5例，大脑半球4例。病灶最大径为2.1~5.9cm。在影像上，10例呈实性，伴囊变、坏死或微囊形成，实质不规则明显强化；8例呈囊实性，壁结节和囊壁均明显强化4例，壁结节明显强化、囊壁无强化3例，壁结节和囊壁均轻度强化1例。瘤周无水肿13例，瘤周轻度水肿5例。结论：PA的MRI表现有一定的特征性，结合临床资料有助于术前诊断，同时对其治疗有重要的参考价值。
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| 关 键 词： | 星形细胞瘤 脑肿瘤 磁共振成像 |
| 收稿时间： | 2010-12-7 |
MRI diagnosis of intracranial pilocytic astrocytoma |
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| YAN jing,CHENG Guan-xun,ZHU Xiao-jun,LIU Guo-shun,YU Kang-hui,ZHANG Gang.MRI diagnosis of intracranial pilocytic astrocytoma[J].Journal of China Clinic Medical Imaging,2011,22(6):381-384. |
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| Authors: | YAN jing CHENG Guan-xun ZHU Xiao-jun LIU Guo-shun YU Kang-hui ZHANG Gang |
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| Institution: | YAN Jing1,CHENG Guan-xun1,ZHU Xiao-jun1,LIU Guo-shun1,YU Kang-hui1,ZHANG Gang2(1.Imaging Center of Nanfang Hospital Affiliated to Southern Medical University,Guangzhou 510515,China,2.Department of Radiology,Guangdong Hospital of TCM,Guangzhou 510120,China) |
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| Abstract: | Objective: To investigate the MRI features of intracranial pilocytic astrocytoma(PA) to further enhance the understanding of the disease.Methods: The pre-and-post contrast MR images of 18 cases of pathologically confirmed PA were analyzed retrospectively.Results: Of the 18 PA,9 located in the midline structure(5 in the optic chiasm,2 in the brainstem,1 in the hypothalamus and 1 in the fourth ventricle),5 in the cerebellum and 4 in the cerebral hemisphere.The size of lesions ranged from 2.1cm to 5.9cm.On MRI... |
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| Keywords: | Astrocytoma Brain neoplasms Magnetic resonance imaging |
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