Male, 13 months old, with seizure-like movements. The brain parenchyma shows normal signal intensity and morphology. No edema or mass effect is detected. No restricted diffusion is seen. There is no evidence of any cortical dysplasia or migrational anomaly. A normal variant mega-cisterna magna is suspected.The pituitary gland is within normal limits for age. The brain stem and cerebellar vermis are unremarkable. The cerebellar hemispheres are normally formed and the cerebellar tonsils terminate above the level of the foramen magnum.The pattern of white matter myelination is appropriate for age. No evidence of intracranial hemorrhage or pathologic extra-axial fluid collection is seen. Ventricular size and morphology are within normal limits.
Unremarkable examination with no specific findings to account for the patient's seizures.