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Keywords:

  • Dehiscence;
  • endolymphatic sac surgery;
  • posterior semicircular canal;
  • endolymphatic shunt

Abstract

Posterior semicircular canal dehiscence is a rare otologic entity that presents with third window signs and symptoms. Petrous apex cholesteatoma, fibrous dysplasia, high riding jugular bulb, and eosinophilic granuloma have been reported to be associated with posterior semicircular canal dehiscence. Here we report a case of development of posterior semicircular canal dehiscence following an endolymphatic sac surgery for the first time. Laryngoscope, 2012