 There is redemonstration of postoperative findings from multiple prior craniotomies with areas of bilateral frontal and cerebellar hemisphere encephalomalacia. There is an unchanged meningioma along the planum sphenoidale. The partially cystic lesion in the left cerebellar hemisphere with surrounding edema appears to be unchanged in size. There is no evidence of acute ischemia. The shunted ventricular system appears to be unchanged. There is an unchanged enhancing intraconal lesion within the lateral left orbit. There is a partially-imaged upper cervical spinal cord ependymoma and upper cervical spinal canal schwannomas. There are unchanged enhancing left parietal and right occipital scalp lesions. There are postoperative findings related to bilateral retrosigmoid craniotomies. The residual components of the left vestibular schwannoma have not significantly changed in size. Likewise, the residual right vestibular schwannoma has not significantly changed in size. There is no significant interval change in the left facial nerve schwannoma involving the geniculate ganglion and internal auditory canal. There are also smaller facial nerve schwannomas centered in the right geniculate ganglion, as well as in the right mastoid segment, which are unchanged. A punctate left cerebellomedullary cistern schwannoma is unchanged. There are grossly unchanged bilateral trigeminal nerve schwannomas.
1. No significant interval change in the stigmata of neurofibromatosis type 2, including the planum sphenoidale meningioma, residual bilateral vestibular schwannomas and bilateral facial nerve and trigeminal nerve schwannomas, and left cerebellomedullary cistern schwannomas, left orbit and scalp schwannomas, left cerebellar lesion with surrounding edema, partially-imaged upper cervical spinal cord ependymoma and upper cervical spinal canal schwannomas. 2. The shunted ventricular system appears to be unchanged in size.