1. No acute intracranial abnormality.
2. Stable 9-10 mm cystic focus in the left periatrial white matter that remains consistent with a nonaggressive process.
3. Stable cerebellar tonsillar ectopia.
4. Mild, symmetric intrinsic T1 hyperintensity within the basal ganglia. While nonspecific, differential considerations include gadolinium deposition, prior hepatic dysfunction, and endocrine abnormalities (especially those involving calcium tablets
and and thyroid hormone).
Nonenhancing 9-10 mm cystic focus in the left periatrial white matter remain stable.
There is no abnormal parenchymal or meningeal enhancement.
There is no acute infarct, new intracranial mass, or intracranial hemorrhage.
There is mild, symmetric intrinsic T1 hyperintensity within the basal ganglia.
Slight crowding of the foramen magnum by the cerebellar tonsils that descend 4-5 mm below the level of the foramen magnum is unchanged. Ventricles, sulci, and cisterns are otherwise within normal limits.
Major intracranial flow voids are preserved.
There is trace, unchanged opacification of the mastoid air cells bilaterally. Bones and extracranial structures are otherwise within normal limits.