 The extensive white matter T2 hyperintense lesions are stable to perhaps minimally progressed in the superior frontal gyri. There is unchanged encephalomalacia with prominent perivascular spaces within the left parietal white matter. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The ventricles and basal cisterns are stable in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There is mucosal thickening of the left maxillary sinus. The orbits, skull, and scalp soft tissues are unremarkable.
Stable to minimal progression of the demyelinating lesions in the brain without specific findings to suggest PML. 