 The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There are no masses, mass effect or midline shift. The pituitary gland is normal in size. There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. No diffusion-weighted abnormalities are identified. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear. There is no abnormal enhancement within the brain. Images of the internal auditory canals demonstrate the seventh and eighth nerves to be normal in size and symmetric bilaterally without masses or enhancing lesions along the course of these nerves or in the cerebellopontine angle cisterns bilaterally. The inner ear structures are normal in appearance and symmetric bilaterally without congenital inner ear anomalies identified on either side. There are no vascular anomalies.
Negative MRI of the brain and internal auditory canals including gadolinium enhancement. Specifically, the seventh/eighth nerve complexes are intact within bilaterally.