Infant with seizures Pediatric Imaging Neurological December 11, 2022October 13, 2022 Sagittal T1 MRI without contrast of the brain shows severe hypoplasia of the pons and cerebellum. The fourth ventricle is enlarged and the posterior fossa is of normal size. The diagnosis was pontocerebellar hypoplasia. Related Published December 11, 2022October 13, 2022