medical Definition of internal auditory canal
: a short auditory canal in the petrous portion of the temporal bone through which pass the facial and auditory nerves and the internal auditory artery
- Computed tomography is particularly useful for identifying bony lesions of the temporal bone and mastoid process, and magnetic resonance imaging … is now capable of demonstrating lesions such as acoustic neuromas measuring 5 mm in diameter in the internal auditory canal.
- —Joseph B. Nadol, Jr., The New England Journal of Medicine, 7 Oct. 1993
