 There is mild motion artifact degrading image quality. The cerebellar tonsils terminate above the foramen magnum. There is no acute infarct, mass effect or midline shift. The ventricles and basal cisterns are appropriate for patient age. There is no hydrocephalus. The flow-voids of the skull base are intact. There is mild left and trace right maxillary sinus mucosal thickening.
No evidence of Chiari I malformation or other acute intracranial abnormality.