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Dandy-Walker syndrome in a 2-month-old girl (MRI)

(A) Mid-sagittal view: posterior fossa appears large. Small anterior vermis. Posterior part of corpus callosum is hypoplastic. (B) Axial section through posterior fossa: enlarged 4th ventricle with broad communication to fluid-filled posterior fossa. Cerebellar hemispheres are hypoplastic. (C) Axial section at mid-brain level demonstrating anterior vermis and posterior fossa cyst. (Contributed by Dr. Eugen Boltshauser.)

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