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目的对比观察脑及脊髓细胞型(CE)与伸长型室管膜瘤(TE)的MRI表现,以提高对CE及TE病理亚型的进一步认识。方法回顾性分析经手术病理证实的中枢神经系统CE 25例及TE 26例,观察肿块发生的部位、累及的范围、内部的信号特点、有无囊变/钙化、肿瘤的边界、对周围结构的影响、邻近脊髓是否形成空洞、是否有水肿、有无种植转移、增强扫描后的强化特点及强化幅度等。结果 25例CE,颅内8例,5例位于第四脑室,3例位于幕上脑实质;脊髓内17例。26例TE中,幕上脑实质内2例,位于左侧额叶,与侧脑室相通;髓内24例。CE与TE发生的部位、囊变的特点有显著性差异(P<0.05),而发生肿瘤的年龄、性别、范围、信号特点、边界、脊髓空洞的形成、脊髓水肿及强化幅度未见明显差异。结论脑及脊髓内CE及TE的MRI具有一定特征性表现,有助于术前诊断及指导临床治疗。
Objective To compare the MRI findings of brain and spinal cord cell type (CE) and lengthening type ependymoma (TE) in order to further understand the pathological subtypes of CE and TE. Methods A retrospective analysis of 25 cases of pathologically confirmed central nervous system and 26 cases of TE were performed to observe the location of the tumor, the extent of the involvement, the internal signal characteristics, whether cystic / calcification, tumor boundaries, the surrounding structure Affect the formation of adjacent spinal cord cavity, whether there is edema, with or without metastasis, enhanced scanning enhanced features and intensified range. Results 25 cases of CE, 8 cases of intracranial, 5 cases located in the fourth ventricle, 3 cases located in supratentorial parenchyma; spinal cord in 17 cases. 26 cases of TE, the supratentorial brain in 2 cases, located in the left frontal lobe, and the lateral ventricle; intramedullary in 24 cases. There were significant differences in the characteristics of cystic change between CE and TE (P <0.05), but there was no significant difference in the age, sex, range, signal characteristics, border, syringomyelia, spinal cord edema and extent of enhancement . Conclusion The MRI findings of CE and TE in the brain and spinal cord have some characteristic features, which are helpful for the preoperative diagnosis and guiding the clinical treatment.