 MRI: There is slight increase in size of the lesion in the right cerebellar hemisphere, measuring up to 18 mm with mild surrounding vasogenic edema, along with interval evolution of the signal characteristics in the lesion since July 2015. There is also no appreciable change in size of the 3 mm lesion in the right subinsular white matter. There are a few scattered nonspecific foci of T2 hyperintensity in the cerebral white matter. There is no evidence of acute infarction. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The skull, and scalp soft tissues are grossly unremarkable. There are bilateral lens implants. There is a small defect in the right lamina papyracea. There is a right maxillary sinus retention cyst.MRA: There is no evidence of significant steno-occlusive lesions or aneurysms.
1. Slight increase in size of the hemorrhagic right cerebellar metastasis since July 2015, but no significant interval change in the hemorrhagic right insular metastasis.2. No evidence of significant steno-occlusive lesions.