Premature newborn with a small cerebellum on prenatal US

Neurological
MRI of Dandy Walker variant
Sagittal T1 MRI with contrast of the brain (upper left) shows an normal size posterior fossa containing a dilated fourth ventricle resulting in a small midline cyst. Axial (upper right) and coronal (below) T1 MRI with contrast of the brain show hypoplasia of the cerebellar vermis. No hydrocephalus is present.

The diagnosis was Dandy Walker variant.

Published