Multiple sclerosis. There are numerous, greater than 10 T2 hyperintense lesions in the supratentorial and infratentorial white matter, which are not significantly changed. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is a small retention cyst in the right maxillary sinus.
No significant interval change in the intracranial multiple sclerosis lesions.