- Etiology: abnormality of ventral induction, order of growth is genu -> body -> splenium (front to back), Bundles of Probst run front to back instead of crossing midline
- Imaging: parallel lateral ventricles on axial images, Viking horn / everted lateral ventricles on coronal images, colpocephaly, high riding third ventricle
- Clinical: associated with pericallosal lipoma which arise from persistence + maldifferentiation of meninx primitiva, Dandy Walker malformation, encephalocele
Pediatric Imaging 