Right-sided acoustic neuroma, which was re-resected in a second operation about 5 years ago. There are stable postoperative findings related to suboccipital craniotomy for resection of a right vestibular schwannoma, including right cerebellar hemisphere and middle cerebellar peduncle encephalomalacia. There is no evidence of recurrent vestibular schwannoma. There is disruption of the right cranial nerve 7 and 8 complex as well as volume loss of the right trigeminal nerve. There is also unchanged loss of fluid signal within the right cochlea. The left internal auditory canal contents and inner ear structures are unremarkable. There is no evidence of intracranial hemorrhage or acute infarct. The brain parenchyma appears unremarkable. The ventricles are stable in size and configuration. There is no midline shift or herniation. The major cerebral vessels are grossly intact. The skull and extracranial soft tissues are unchanged, including asymmetric loss of bulk of the right mimetic muscles.
Stable postoperative findings without evidence of recurrent vestibular schwannoma.