Worsening dizziness and tinnitus: 4 mm schwannoma on the left side. There is an unchanged enhancing nodule within the left internal auditory canal that measures up to 4 mm. No new mass lesions are identified. There is fluid signal within the left mastoid air cells. The bilateral inner ear structures are intact. There is an unchanged 10 mm wide probable Thornwaldt cyst in the nasopharynx. The skull and extracranial soft tissues are otherwise unremarkable.
No significant interval change in the subcentimeter left internal auditory canal probable vestibular schwannoma.