 A few sequences are motion degraded. Given this caveat:There is asymmetric increased enhancement of the descending (a.k.a. mastoid) portion of the left facial nerve. 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.
There is asymmetric increased enhancement of the descending (a.k.a. mastoid) portion of the left facial nerve, suggestive of neuritis, consistent with the provided history of left facial palsy.