Cochlear-Internal Canal and Cochlear-Facial Dehiscence: A Novel Entity

J Int Adv Otol. 2018 Aug;14(2):334-336. doi: 10.5152/iao.2018.5089.

Abstract

Different types of otic capsule dehiscence restricted to the cochlea have been described. Here we describe the case of a patient with a cochlear-internal auditory canal dehiscence associated with a cochlear-facial dehiscence not reported before. A 53-year-old patient with severe to profound sensorineural hearing loss due to bilateral Meniere's disease underwent a cochlear implant surgery on the right ear. Preoperative brain magnetic resonance imaging findings were reported to be normal; during surgery, a cerebrospinal fluid gusher occurred at the time of round window opening. Postoperative computed tomography imaging showed a bony dehiscence at two levels of the otic capsule.

Publication types

  • Case Reports

MeSH terms

  • Anti-Bacterial Agents / therapeutic use
  • Cerebrospinal Fluid Leak / diagnosis
  • Cerebrospinal Fluid Leak / etiology*
  • Cerebrospinal Fluid Leak / surgery
  • Cochlea / abnormalities*
  • Cochlea / diagnostic imaging
  • Cochlear Implantation / methods
  • Ear Canal / surgery
  • Gentamicins / administration & dosage
  • Gentamicins / therapeutic use
  • Hearing Loss, Sensorineural / diagnosis
  • Hearing Loss, Sensorineural / etiology
  • Hearing Loss, Sensorineural / surgery*
  • Humans
  • Injection, Intratympanic
  • Magnetic Resonance Imaging
  • Male
  • Meniere Disease / complications*
  • Middle Aged
  • Round Window, Ear / abnormalities
  • Round Window, Ear / pathology
  • Semicircular Canals / diagnostic imaging
  • Semicircular Canals / pathology
  • Tinnitus / diagnosis
  • Tinnitus / etiology
  • Tomography, X-Ray Computed
  • Treatment Outcome
  • Vestibular Evoked Myogenic Potentials / physiology

Substances

  • Anti-Bacterial Agents
  • Gentamicins