15-month-old with global developmental delay, possible seizure. Torsional nystagmus, rule out optic nerve dysplasia. Premature pubarche, rule out pituitary abnormality.. No intracranial mass or mass effect. No focal parenchymal signal abnormality is seen. Sulcation and myelination appear appropriate for age. Midline structures including the corpus callosum appear within normal limits. There is mild hypoplasia involving the cerebellar vermis. Brain parenchyma appears otherwise within normal limits. Ventricles are normal in size and configuration without hydrocephalus. No evidence of acute ischemia. Bone marrow signal is within normal limits.Evaluation of the orbits demonstrates no abnormality involving the bilateral globes, optic nerves, or extraocular muscles. Specifically, no abnormal T2 signal, enhancement, mass, or hypoplasia involving the optic nerves is appreciated. Pituitary gland also appears within normal limits. T1 hyperintensity of the neurohypophysis is preserved. There is normal homogeneous enhancement of the pituitary gland.
There is mild hypoplasia involving the inferior cerebellar vermis, which is a nonspecific finding and of uncertain clinical significance. Otherwise, the brain parenchyma appears within normal limits for age. No abnormality involving the optic nerves or pituitary gland is appreciated.