Medical Dictionary

internal auditory canal

noun
variants: also

internal acoustic meatus

or

internal auditory meatus

Medical Definition of internal auditory canal

  1. :  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>


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