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Updated: May 21, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
Posterior semicircular canal dehiscence following endolymphatic sac surgery
Saman Kiumehr1, Hossein Mahboubi, Hamid R Djalilian
1Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California-Irvine, Irvine, California, USA.
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.

