髓母细胞瘤的MRI诊断  

MRI diagnosis of medulloblastoma

作　　者：李雷 高建伟[2] 刘霞[2] 

机构地区：[1]青岛市中心医院放射介入科,山东青岛266042 [2]泰安市第一人民医院影像中心,山东泰安271026

出　　处：《泰山医学院学报》2014年第10期1013-1015,共3页Journal of Taishan Medical College

摘　　要：目的探讨髓母细胞瘤的临床与MRI表现及特征,以提高对该病的认识。方法回顾性分析8例经手术或活检、病理证实髓母细胞瘤患者的临床及MR表现及特征,分析病变的MRI表现。结果 8例髓母细胞瘤中位于左侧小脑半球3例,位于小脑蚓部5例,其中2例累及左侧小脑幕。2例实性病变伴有囊变,1例合并出血,5例基本为实性。肿瘤呈不均匀长T1长T2异常信号,瘤周见轻度脑水肿改变,呈明显不均匀强化。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是目前髓母细胞瘤的最佳影像学检查方法。Objective：To study the MRI features of medulloblastoma. Methods：This study included 8 patients of medul-loblastoma,the clinic features and MRI findings were analyzed. Results：Among 8 cases,3 lesions were located in the left cerebellar hemisphere,5 cases were located at the cerebellar vermis,among them 2 cases involving the left side of the ten-torium cerebelli. 2 cases of solid lesions associated with cystic change,1 case had bleeding,5 cases exhibited basically solid mass. Tumor is uneven,the abnormal long T1 long T2 signal,Around tumor we can see mild cerebral edema,it shows obvious uneven reinforcement. Conclusion：MR imaging has advantages in the detection of medulloblastoma with re-gard to its ability to show the lesions well,meanwhile displaying the size,morphology and signal features clearly. MRI can be considered as the first choice of study in diagnosing of medulloblastoma.

关 键 词：髓母细胞瘤 诊断 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤]