 Patient has undergone craniotomy with debulking of the mass is in the right cerebellopontine angle cistern. There is residual enhancement in the right proximal internal auditory canal. No significant hemorrhage identified.Multiple additional enhancing masses are identified and appear similar to the prior examination:*Mass in the left cerebellomedullary angle cistern, likely a cranial nerve schwannoma.*Mass in the left geniculate ganglion, likely a facial nerve schwannoma.*Bilateral Meckel's cave and involving the bilateral foramen ovale, likely V3 schwannomas*masslike enhancement in the left cavernous sinus, likely cranial nerve schwannoma*mass along the left tentorium, possibly a meningioma or schwannoma*multiple masses along the carotid sheath extending into the neck and partially imaged, likely cranial nerve schwannomas*broad-based mass on the planum sphenoidale, likely a meningioma*mass in the left lateral rectus muscle, possible an abducens schwannoma*peripherally enhancing mass at the cervicomedullary junction, corresponding to a treated ependymoma.Additional postoperative findings are noted including craniotomy with postsurgical change from meningioma resection in the left frontal lobe and the interhemispheric fissure. There is stable increase in the CSF space along the left lateral cerebellar hemisphere. There is abnormal enhancement and thickening in the right suboccipital and the left parietal scalp. The ventricles and sulci are normal in size. There is no evidence for postoperative hemorrhage. No diffusion-weighted abnormalities are identified. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear.Images of the right internal auditory canal demonstrate residual tumor occupying the entire proximal canal. Postsurgical changes are noted in the proximal left internal auditory canal.
1.Post operative findings from debulking of right cerebellopontine angle masses with residual enhancing tumor in the internal auditory canal.2.Redemonstration of multiple extra-axial masses at the left cerebellomedullary angle cistern, left geniculate ganglion, bilateral Meckel's caves, bilateral foramen ovale, left cavernous sinus, along the left tentorium, and the planum sphenoidale.3.Multiple masses seen in the neck and partially imaged along the carotid sheath.4.Stable appearance of enhancing tumor at the cervicomedullary junction.5.Postoperative findings of left frontal and interhemispheric fissure meningioma resection without evidence of recurrence.