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Updated: Aug 20, 2026

Whole Mount Dissection and Immunofluorescence of the Adult Mouse Cochlea
Published on: January 1, 2016
Bilateral dehiscence of the bony cochlear basal turn
Giovanni Carlo Modugno1, Cristina Brandolini, Ivanpietro Cappello
1Department of Anesthesiologic and Surgical Sciences, University of Bologna, Bologna, Italy. giovanni.modugno@unibo.it
Objective:
To identify bony labyrinth defects as causing symptoms that might otherwise be difficult to understand.
Design:
Imaging investigation on cases of lowered vestibular evoked myogenic potentials (VEMP) threshold.
Setting:
Academic tertiary case-referral medical center.
Patients:
One patient with continuous bilateral tinnitus.
Interventions:
High-resolution computed tomography of petrous bone was performed after audiometry, impedance, and VEMP recording.
Results:
We found a previously unreported dehiscence of the bony plate between the basal turn of the cochlea and the carotid canal.
Conclusions:
A VEMP study could prompt diagnostic imaging tests that might otherwise be neglected. Moreover, it is important to consider the possibility of a bony dehiscence involving not just the semicircular canals.
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