 There is extensive abnormality throughout the right frontal and anterior parietal lobes with areas of cortical thickening, polymicrogyria, and numerous foci of heterotopic gray matter extending from the cortex to the right lateral ventricle ependymal surface. There is extension of polymicrogyria along the superior aspect of the right sylvian fissure. The right lateral ventricle is dysmorphic and dilated. Although no definite cleft is visualized, there is suggestion of mild dimpling of a small portion of the lateral margin of the right lateral ventricle towards a confluent area of abnormal grey matter, and therefore it is possible that this could be on the spectrum of closed lip schizencephaly.The hippocampi are symmetric and normal in appearance. There is no evidence of mass or acute infarct. There are no areas of abnormal parenchymal signal. There is no abnormal intracranial enhancement. There is no midline shift or herniation. The major cerebral flow voids are intact. The midline structures and craniocervical junction are within normal limits.
Extensive right frontal and anterior parietal polymicrogyria and heterotopic gray matter extending to the right lateral ventricle ependymal surface.