Right vestibular schwannoma. History of SRS complete 9/2016. There is an enhancing right cerebellopontine angle cistern tumor with extension into the internal auditory canal that measures up to 22 mm, which is not significantly changed. The tumor contains small areas of cystic change and susceptibility effect likely replated to prior hemorrhage. There is mild mass effect upon the right middle cerebellar peduncle, but the brain parenchyma otherwise appears unremarkable. There is no evidence of acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
No significant interval change in the right vestibular schwannoma.