中枢神经细胞瘤的磁共振成像表现及其诊断  

The MRI findings and diagnosis of central neurocytoma

作　　者：邱清香 王运韬[1] 廖雪燕[1] 

机构地区：[1]福建医科大学附属龙岩市第一医院放射科,364000

出　　处：《实用医学影像杂志》2015年第4期280-283,共4页Journal of Practical Medical Imaging

摘　　要：目的探讨中枢神经细胞瘤(CNC)的磁共振成像(MRI)表现,以提高其认识和诊断。方法回顾性分析13例经手术病理证实为CNC的MRI及临床资料,并复习文献。结果 13例病灶均位于侧脑室透明隔区或邻近Monro孔,边界清晰。11例形态不规则,2例呈类圆形。10例呈囊实性,2例以囊性为主,1例以实性为主并见少许出血。10例见钙化,6例见流空血管影,8例病灶边缘与侧脑室壁之间见多发实性条索状影。T1WI增强扫描10例不均匀轻-中度强化,2例囊壁强化,囊性部分均无强化,1例明显强化。10例弥散加权成像(DWI)呈稍高或高信号。13例病灶均无明显瘤周水肿。结论 CNC具有较为特征性的MRI表现,综合患者年龄、部位等特点,可进一步提高其正确诊断率。Objective To investigate the MRI findings of the central neurocytoma to improve its diagnosis. Methods The MRI findings and clinical data of 13 cases with pathologically-proved CNC were analyzed retrospectively and reviewed of literature. Results Thirteen lesions were all located in the lateral ventricles of septum pellucidum,which closed to the Monro＇s foramen with clear boundary. The shape of 11 lesions were irregular,2 were oval. 10 lesions were solid-cystic, 2 cases were mainly cystic ,and 1 case was mainly solid with a little bleed. Ten cases had calcifications,6 cases were observed signal voids of the vessels, while the multiple solid strip shadows between the edge of the lesions and the lateral ventricle wall were observed in 8 lesions. On enhanced MRI, 10 cases were inho- mogeneous light-moderately enhancement, the cystic wall of ：2 cases were enhanced while the cystic part was not enhanced. 1 case was significantly enhancement. Ten cases were slightly hyperintense or hyperintense on DWI. Thirteen lesions with no obvious peritumoral edema. Conclusion CNC has a characteristic MRI findings,integrated with patient age ,location features ,it can further improve the correct diagnosis.

关 键 词：脑室 神经细胞瘤 磁共振成像 诊断 鉴别 

分 类 号：R739.4[医药卫生—肿瘤] R445.2[医药卫生—临床医学]