脑实质室管膜瘤的MRI诊断  

MRI diagnosis of ependymocytoma

作　　者：高建伟[1] 于台飞[2] 刘霞[1] 

机构地区：[1]泰安市第一人民医院影像中心,山东泰安271026 [2]山东省医学影像学研究所,济南250021

出　　处：《泰山医学院学报》2013年第5期332-334,共3页Journal of Taishan Medical College

摘　　要：目的探讨脑实质室管膜瘤的临床与MRI表现及特征,以提高对该病的认识。方法回顾性分析8例经手术、病理证实脑实质室管膜瘤患者的临床及MRI表现及特征,分析病变的MRI表现。结果 8例室管膜瘤中位于左侧顶叶2例,位于小脑蚓部1例,位于左侧顶枕叶2例,位于右侧顶枕叶2例,位于右侧枕叶1例,5例实性病变伴有囊变,肿瘤实性部分呈等长T1等长T2异常信号,囊变区呈长T1长T2异常信号,瘤周见轻度脑水肿改变,肿瘤实性部分呈明显不均匀强化。3例基本为实性,肿瘤呈不均匀等长T1长T2异常信号,瘤周见轻度脑水肿改变,呈轻度到中度不均匀强化。结论 MRI能很好地发现病灶,并能清晰显示其大小、形态及信号特点,MRI是目前室管膜瘤的最佳影像学检查方法。Objective： To study the MRI features of ependymocytoma. Methods： This study included 8 patients of ependymoeytoma,the clinic features and MRI findings were analyzed. Results ： Among 8 cases of ependymoma , 2 eases lo- cated in the left parietal lobe, 1 eases located in the vermis of the cerebellum, 2 cases located in the left parietal occipital lobe, 2 eases located in the right parietal occipital lobe, 1 cases located in the fight occipital lobe, 5 cases of solid lesion with cystic, solid part of the tumor showed long T1 long T2 abnormal signal, cystic areas were long T1 and long T2 abnor- mal signal, peritumoral see mild brain edema, solid part of the tumor showed obvious heterogeneous enhancement. 3 cases were solid, tumors were not equal T1 long T2 abnormal signal, peritumoral brain edema was seen in mild, mild to moderate inhomogeneous enhancement. Conclusion： MR imaging has advantages in the detection of ependymocytoma with regard to its ability to show the lesions well, meanwhile displaying the size, morphology and signal features dearly. MRI ean be consid- ered as the first choice of study in diagnosing of ependymocytoma.

关 键 词：室管膜瘤 诊断 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤]