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目的:探讨髓母细胞瘤的MRI特征。材料与方法:对19例髓母细胞瘤的临床及MRI影像表现加以分析。结果:髓母细胞瘤MRI表现为:18例位于小脑蚓部,1例位于小脑半球。MRI平扫T1WI低信号16例,等信号3例;T2WI表现为略高信号。19例中16例还有增强MRI,增强MRI显示肿块有明显强化,且较均匀(15/16)。结论:MRI对于髓母细胞瘤的诊断及鉴别诊断价值较大。
Objective: To investigate the MRI features of medulloblastoma. Materials and Methods: Clinical and MRI findings of 19 cases of medulloblastoma were analyzed. Results: The manifestations of medulloblastoma were: 18 cases located in cerebellar vermis and 1 case located in cerebellar hemisphere. MRI plain T1WI low signal in 16 cases, 3 cases of equal signal; T2WI showed slightly higher signal. In 19 cases, there was enhanced MRI in 16 cases. Enhanced MRI showed that the masses were significantly enhanced and more uniform (15/16). Conclusion: MRI is of great value in the diagnosis and differential diagnosis of medulloblastoma.