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J Laryngol Otol. 2012 Sep;126(9):928-31. doi: 10.1017/S0022215112001570.

Surgical treatment of posterior semicircular canal dehiscence syndrome caused by jugular diverticulum.

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1
Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.

Abstract

OBJECTIVE:

We report a rare case of posterior semicircular canal dehiscence caused by a jugular diverticulum, and we describe its surgical treatment using a dehiscence resurfacing manoeuvre.

METHOD:

The clinical findings, surgical procedure and outcomes are presented.

RESULTS:

A 66-year-old man presented with disequilibrium, sound-induced vertigo, a reduced ocular vestibular evoked myogenic potential threshold, and pressure-induced vertical and torsional nystagmus. Computed tomography revealed a right posterior semicircular canal dehiscence caused by a diverticulum of the jugular bulb. The defect in the posterior semicircular canal was localised and resurfaced with bone paté, temporalis muscle fascia and conchal cartilage, under direct visualisation. Post-operatively, the patient's symptoms disappeared and his ocular vestibular evoked myogenic potential threshold normalised.

CONCLUSION:

This case illustrates that posterior semicircular canal dehiscence can be surgically managed by resurfacing the defect site via a transmastoid approach.

PMID:
22892221
DOI:
10.1017/S0022215112001570
[Indexed for MEDLINE]
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