77 years, Female, meningioma, evaluate for growth. Again seen is extra-axial enhancing mass in the right posterior fossa abutting the right sigmoid sinus, lateral cerebellar surface, and lateral aspect of the petrous temporal bone measures. Mass measures 19 x 20 x 18 mm in the AP transverse, and craniocaudal dimensions previously 18 x 18 x 18 mm. There is mild T2/FLAIR hyperintensity involving the right cerebellar hemisphere. Right transverse and sigmoid sinuses are widely patent. There is local mass effect on the adjacent cerebellar hemisphere without midline shift or herniation. Ventricles are normal in size without evidence of hydrocephalus.Remainder of the brain demonstrates multiple foci of T2/FLAIR hyperintensity in the periventricular and subcortical white matter which is nonspecific but compatible with mild chronic small vessel ischemic changes. Brain parenchyma appears otherwise unremarkable for age. Calvarium and extracranial soft tissues are unremarkable.
Enhancing right posterior fossa mass, which most likely represents a meningioma, measures minimally larger than on prior outside study from 5/6/2015. There is mild local mass effect on the adjacent right cerebellar hemisphere. There is mild parenchymal edema involving the right cerebellar hemisphere which is similar to prior. 