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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Regarding Dandy-Walker syndrome, all are seen except-
assistant
The correct answer is  Dandy-walker malformation

The Dandy-Walker malformation consists of a cystic expansion of the 4th ventricle in the posterior fossa and midline cerebellar hypoplasia.
There is : -
Hydrocephalus (90% of cases)
Agenesis of the cerebellar vermis and corpus callosum.
The rapid increase in head size with prominent occiput.