Male, 11 months old, with staring spells x 2. The cerebellar tonsils are pointed and descend approximately 5 mm below the level of the foramen magnum. The CSF space is effaced through the foramen magnum.Brain morphology is otherwise unremarkable. No evidence of restricted diffusion or any other signal abnormality is detected. No edema or mass effect is seen.The pituitary region is unremarkable. The corpus callosum is fully formed and normal. The brainstem and cerebellar vermis are unremarkable.No evidence of intracranial hemorrhage or any abnormal fluid collection is seen. The ventricles are normal in size and morphology.
1.Findings compatible with Chiari I malformation.2.No other specific abnormalities are detected.