Vestibular schwannoma: vison changes and history of Familial Mediterranean fever. Internal Auditory Canals: There is an ovoid enhancing lesion in the left internal auditory canal, which measures up to 10 mm in length and 5 mm in width. There is mildly diminished fluid signal in the left inner ear structures, which are otherwise intact. The right cranial nerve 7 and 8 complexes are intact, without evidence of associated mass lesions. The right inner ear structures, including the cochlea, vestibule, endolymphatic duct, and semicircular canals, appear unremarkable. The bilateral mastoid air cells and middle ears also appear grossly unremarkable.Brain: There is no evidence of intracranial hemorrhage or acute infarct. There is mild scattered cerebral white matter T2 hyperintensity bilaterally, mainly in a periventricular distribution. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and paranasal sinuses are grossly unremarkable. There is a 10 mm thick apical scalp lipoma.
1. A left internal auditory canal vestibular schwannoma measures up to 10 mm.2. Mild scattered cerebral white matter T2 hyperintensity bilaterally may represent a demyelinating disease, perhaps related to Familial Mediterranean fever, but are nonspecific.