Korean J Otorhinolaryngol-Head Neck Surg.  2018 Aug;61(8):435-438. 10.3342/kjorl-hns.2016.17636.

A Case of Posterior Semicircular Canal Dehiscence Caused by High Jugular Bulb

Affiliations
  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine and Medical Research Institute, Busan, Korea. o3jdoc@hanmail.net

Abstract

Posterior semicircular canal dehiscence represents a third-window lesion manifesting as hearing loss with vestibular dysfunction. Computed tomography findings of a dehiscent posterior canal can be verified with increased vestibular evoked myogenic potential responses as in other third-window lesions. The jugular bulb is the bulbiform connection between the sigmoid sinus and the internal jugular vein at the skull base. High jugular bulb can erode into inner ear structures. According to the literature review, there has been no case report about posterior semicircular canal dehiscence caused by high jugular bulb in Asia. Therefore, the authors report a case with a review of literature.

Keyword

High jugular bulb; Posterior semicircular dehiscence
Full Text Links
  • KJORL-HN
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2021 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr