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Ｄａｎｄｙ -Ｗａｌｋｅｒ畸形属旧小脑发育畸形 ,该病在先天性后颅窝畸形中相对少见 ,Ｂａｒｋｏｖｉｃｈ将Ｄａｎｄｙ -Ｗａｌｋｅｒ畸形、Ｄａｎｄｙ-Ｗａｌｋｅｒ变异和巨小脑延髓池等一组相近似的异常统称为Ｄａｎｄｙ -Ｗａｌｋｅｒ综合症。这组疾病影像学表现较具特征 ,
Dandy-Walker malformation is a deformity of the old cerebellum that is relatively rare in congenital posterior fossa deformities. Barkovich referred to a group of similar anomalies such as Dandy-Walker malformation, Dandy-Walker variation, and megacoppanar cisternia as Dandy- Walker syndrome. This group of diseases imaging performance is more characteristic,