Presentation
Large head, with posterior swelling.
Patient Data
Age: 3 months
Gender: Male
From the case:
Dandy-Walker malformation
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Large posterior fossa, with cystic dilatation of the 4th ventricle, of CSF signal intensity, extending into posterior fontanelle forming subcutaneous bulging.
Hypoplasia of cerebellar vermis, cephalad rotation of vermian remnant.
Torcula-lambdoid inversion, abnormal high tentorium.
Case Discussion
Dandy-Walker malformation is a cerebellar anomaly, in which cystic balloon-like dilatation of the fourth ventricle, large posterior fossa, usually associated with supratentorial hydrocephalus, in such case open posterior fontanelle.
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