脑室内中枢神经细胞瘤的CT及MRI影像学特点

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摘要目的：分析中枢神经细胞瘤的CT及MRI影像学特点，探讨其特征性影像学表现，以进一步提高对该病的认识。方法：回顾性分析14例经手术病理证实的中枢神经细胞瘤。男8例，女6例，年龄21~65岁，平均（30.3±12.0）岁。14例均行MRI检查，5例同时行CT检查。结果：14例中枢神经细胞瘤中10例位于侧脑室近孟氏孔处，4例位于其它脑脊液播散部位，肿瘤平均直径（5.79±1.79） cm。CT上多表现为混杂密度，2例肿瘤表现为完全实性，3例均可见钙化及囊变。MRI肿瘤表现为不均匀信号，T1WI多呈等、低信号，T2WI呈混杂高信号，囊性部分表现为明显高信号；12例可见肥皂泡样表现及血管流空影，8例均可见针状体连接肿瘤实性部分与波浪形侧脑室壁。增强MRI多呈不均匀强化。结论：中枢神经细胞瘤在CT及MRI上有一定特征性，根据其特征性影像学表现，有助于中枢神经细胞瘤的准确诊断。

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	徐亚利
	汤光宇

关键词 ：神经细胞瘤, 脑室肿瘤, 磁共振成像, 体层摄影术, 螺旋计算机

Abstract：Objective: Analyze and explore CT and MRI characteristics of central neurocytoma(CNC), in order to improve the knowledge of this disease. Methods: Retrospectively analyze 14 cases of CNC which proved by pathology, with 8 males, 6 females, age between 21 and 65 years. The mean age was (30.3±12.0) years. Fourteen patients were all underwent conventional MRI examination, 5 patients were also underwent CT examination. Results: Ten cases located in lateral ventricles and closed to Monro area, 4 cases located in CSF disseminated sites. The mean diameter of the tumor was (5.79±1.79) cm. On CT, CNC were appeared as mixed density. Two cases were appeared as completely solid, 3 cases were seen as calcification and cysts. On MRI, CNC was isointense or hypointense to brain on T1WI, heterogeneous hyperintense on T2WI; 12 cases had a “soap-bubble” multicystic appearance and the vascular flow voids on T2WI; 8 cases had the spicules connected to the solid part of tumor and wavy ventricle wall. Contrast enhanced MRI showed heterogeneous enhancement. Conclusion: CNC has some characteristics on CT and MR images, which can help radiologist to make the correct diagnosis.

Key words： Neurocytoma Cerebral ventricle neoplasms Magnetic resonance imaging Tomography, spiral computed

收稿日期: 2017-05-23

PACS:	R739.41
	Ｒ445.2
	Ｒ814.42

通讯作者: 汤光宇，同济大学附属第十人民医院放射科，200072。E-mail：tgy17@126.com

作者简介: 徐亚利（1988-），女，安徽砀山人，住院医师。E-mail：xuyali20100927@163.com

引用本文:

徐亚利，汤光宇. 脑室内中枢神经细胞瘤的CT及MRI影像学特点[J]. 中国临床医学影像杂志, 2018, 29(3): 158-160.
XU Ya-li, TANG Guang-yu. CT and MRI characteristics of the central neurocytoma in the ventricle. JOURNAL OF CHINA MEDICAL IMAGING, 2018, 29(3): 158-160.

链接本文:

http://www.jccmi.com.cn/CN/ 或 http://www.jccmi.com.cn/CN/Y2018/V29/I3/158

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