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Research in Vestibular Science > Accepted Articles
A case report of superior canal dehiscence syndrome manifested as Meniere’s disease
BYEONG JIN KIM1, EUN JUNG LEE1, YUN NA YANG1, CHAN MI LEE1
1 Department of Otorhinolaryngology-Head and neck Surgery, Jeonbuk National University Hospital , Jeonju , Korea
2Research Institute of Clinical Medicine, Jeonbuk National University, Jeonju, Korea
Correspondence  EUN JUNG LEE ,Tel: +82-63-250-1980, Fax: +82-63-250-1986, Email: imaima97@naver.com
Received: July 18, 2021;  Accepted: August 22, 2021.  Published online: August 22, 2021.
ABSTRACT
The absence of a temporal bone overlying the superior semicircular canal causes superior semicircular canal dehiscence(SSCD). The vestibular symptom of superior semicircular canal dehiscence syndrome (SCDS) is vertigo and audiologic symptoms include autophony, hyperacusis, and ear fullness. A 52-year-old man presented with left-sided unilateral hearing loss, aural fullness, and recurrent spinning-type vertigo. He had positive Hennebert sign and mixed-type hearing loss, with a prominent low-frequency air-bone gap. These symptoms reminded us of SCDS, and CT revealed SSCD. However, the patient had not experienced vertigo until 1 week prior to the visit.. In addition, the audiogram revealed fluctuation of hearing, which was aggravated when the vestibular symptoms manifested. Vertigo might be due to Meniere’s disease rather than SCDS and SSCD was incidentally detected on CT. According to reviews, this is no reported case of SCDS manifested as Meniere’s disease, so we report this case with a brief review of the literature.
Keywords: superior semicircular canal dehiscence; superior canal dehiscence syndrome; Meniere’s disease; hearing fluctuation
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