Legend Ax and Cor T2W images show an absent septum pellucidum. Extensive cortical dysplasia of the right frontal, temporal, and parietal regions with multiple microgyrations of the gray matter and widening of the Sylvian fissure.

Legend Ax and Cor T2W images and Sag T1W image confirm extensive cortical dysplasia of the frontal, temporal, and parietal regions. Key words: mri developmental congenital

Brain Diagnosis: Polymicrogyria & septo-optic dysplasia