cochlear aqueduct


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Related to cochlear aqueduct: endolymphatic duct, Vestibular aqueduct

co·chle·ar aq·ue·duct

[TA]
a fine canal in the temporal bone, opening superior to the tympanic canaliculus, connecting the perilymphatic space of the cochlea with the subarachnoid space in the region of the bulb of the internal jugular vein.

coch·le·ar a·que·duct

(koklē-ăr ahkwă-dŭkt) [TA]
Fine canal in temporal bone, opening superior to the tympanic canaliculus, connecting the perilymphatic space of the cochlea with the subarachnoid space in the region of the bulb of the internal jugular vein.
References in periodicals archive ?
Carlborg et al hypothesized that equalization occurred as CSF flowed through small tributaries and possibly the fundus of the internal auditory canal when the cochlear aqueduct was disrupted.
We cannot explain this difference, but hearing loss associated with low CSF pressure often seems to affect one ear more than the other) (1,6,9) We hypothesize that the asymmetry of the hearing loss in our patient was the result of the unilaterally diminished patency of the cochlear aqueduct.
The cochlear aqueduct has also been implicated as a possible route of abnormal communication between the subarachnoid and perilymphatic spaces, (11,17) but its role in PG has been called into question.
The temporal bones of patients 1 and 2 demonstrated no radiographically apparent inner ear dysplasia or widening of the cochlear aqueduct that would indicate the precise focus of abnormal communication between the subarachnoid and perilymphatic spaces.