Superior canal dehiscence with tegmen defect revealed by otoscopy: Video clip demonstration of pulsatile tympanic membrane

Andrea Castellucci, Cristina Brandolini, Gianluca Piras, Ignacio Javier Fernandez, Davide Giordano, Carmine Pernice, Giovanni Carlo Modugno, Antonio Pirodda, Gian Gaetano Ferri

Research output: Contribution to journalArticlepeer-review

Abstract

Superior canal dehiscence is a pathologic condition of the otic capsule acting as aberrant window of the inner ear. It results in reduction of inner ear impedance and in abnormal exposure of the labyrinthine neuroepithelium to the action of the surrounding structures. The sum of these phenomena leads to the onset of typical cochleo-vestibular symptoms and signs. Among them, pulsatile tinnitus has been attributed to a direct transmission of intracranial vascular activities to labyrinthine fluids. We present the first video-otoscopic documentation of spontaneous pulse-synchronous movements of the tympanic membrane in two patients with superior canal dehiscence. Pulsating eardrum may represent an additional sign of third-mobile window lesion.

Original languageEnglish
JournalAuris Nasus Larynx
DOIs
Publication statusAccepted/In press - 2016

Keywords

  • Conductive hearing loss
  • Pulsatile tinnitus
  • Pulsatile tympanic membrane
  • Superior canal dehiscence
  • Tegmen defect
  • Third window lesions

ASJC Scopus subject areas

  • Surgery
  • Otorhinolaryngology

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