目的探讨小儿后颅窝肿瘤中最常见的髓母细胞瘤和室管膜瘤的CT诊断及误诊原因，提高诊断正确率。
Objective To study the Easily Mistaken Causes of CT on medulloblastoma and ependymoma in children and improve the accuracy of the diagnosis.
目的探讨小儿后颅窝肿瘤中最常见的髓母细胞瘤和室管膜瘤的CT诊断及误诊原因，提高诊断正确率。
Objective To study the Easily Mistaken Causes of CT on medulloblastoma and ependymoma in children and improve the accuracy of the diagnosis.
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