Meningioma status post CyberKnife in May 2014 and orbital pseudotumor. Brain: There are postoperative findings related to left suboccipital craniotomy for resection of a meningioma with encephalomalacia in the left cerebellar hemisphere. There is slight interval decrease in size of the tumor, which now measures up to 13 mm in thickness, previously 16 mm. There is a persistent nodular extra-axial lesion that is T2 hypointense with susceptibility effect and mild peripheral enhancement along the floor of the left posterior fossa, adjacent to the craniotomy defect that measures up to 15 mm. There is unchanged mild nonspecific periventricular T2 hyperintensity. There is no evidence of acute infarct or hemorrhage. The ventricular system is stable in size and configuration. There has been interval partial resection of a left earlobe keloid.Orbit: There are postoperative findings related to orbitozygomatic craniotomy. There is interval decrease in size of a right inferior intraconal nodular lesion, abutting the optic nerve, measuring up to 12 mm, previously 24 mm. There is persistent associated surrounding enhancement of the right orbital fat and multiple extra-ocular muscles. There is staphylomatous deformity of the bilateral globes.
1.Slight interval decrease in size of the treated left posterior fossa meningioma.2. Persistent small nodular extra-axial lesion in left posterior fossa adjacent to the craniotomy margin may represent an organizing hematoma. 3. Decrease in size of the lesion within the inferior right orbit, abutting the optic nerve.