internal acoustic meatus

(redirected from Internal auditory meatus)
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Related to Internal auditory meatus: auditory nerve, jugular foramen, optic canal, hypoglossal canal, carotid canal, stylomastoid foramen

internal acoustic meatus

[in′tərn·əl ə′kü·stik mē′ād·əs]
(anatomy)
An opening in the hard portion of the temporal bone for passage of the facial and acoustic nerves and internal auditory vessels.
References in periodicals archive ?
In this presented case, bilateral internal auditory meatus infiltration with metastatic adenocarcinoma was an unexpected finding.
2) Prat and Gray reported 1 case of extension along the facial nerve and through the internal auditory meatus that culminated in encasement of the base of the brain and entire spinal cord (massive neuraxial spread); there was no systemic metastasis.
Positive contrast demonstration of a cerebrospinal fluid fistula through the fundus of the internal auditory meatus.