Open AccessPersistent Positional Vertigo in a Patient with Partial “Auto-Plugged” Superior Semicircular Canal Dehiscence: A Case Study
Author(s) -
E. Ionescu,
Samar Idriss,
Pierre Reynard,
A. Ltaief-Boudrigua,
Hung ThaiVan
Publication year - 2022
Publication title -
pubmed central
Language(s) - English
Resource type - Journals
eISSN - 2148-3817
DOI - 10.5152/iao.2022.21417
Subject(s) - medicine , semicircular canal , dehiscence , benign paroxysmal positional vertigo , vertigo , posterior semicircular canal , temporal bone , anatomy , surgery , vestibular system , audiology
A 73-year-old female was referred to our department for persistent left anterior benign paroxysmal positional vertigo refractory to multiple repositioning procedures and training physiotherapist exercises. The audiovestibular assessment and high resonance computed tomography of the petrosal bone confirmed the presence of a 5.4 mm large paucisymptomatic left anterior semicircular canal dehiscence. The connection between the 2 apparently distinct neurotological entities in the same patient was further sustained by additional imagery. T2-weighted and 3-dimensional labyrinthine sequences confirmed the presence of a partially "auto-plugged" superior semicircular canal dehiscence which progressively entrapped greater otolith particles proximal to the cupula of the superior semicircular canal.