Presentation
Large head size with convulsions. Prenatal U/S shows hydrocephalus.
Patient Data
Age: 1 month
Gender: Female
From the case:
Dandy-Walker variant
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moderate supratentorial dilatation of the ventricular system. The bodies of the lateral ventricles are widely separated and parallel with high-riding 3rd ventricle
mega cisterna magna with retro-cerebellar cystic lesion of CSF density communicating with the 4th ventricle
hypoplasia of the cerebellar vermis
no mass lesion or parenchymal area of abnormal attenuation
normal cortical sulci
no extra-axial collection
Diagnosis:
Dandy-Walker variant with moderate supratentorial hydrocephalus and mega cisterna magna as well as retro-cerebellar cyst communicating with the 4th ventricle through hypoplastic vermis. Associated agenesis of the corpus callosum.
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