Minor's syndrome: Dehiscence of the superior semicircular canal. A case report

Superior semicircular canal (SSC) dehiscence syndrome, also known as Minor syndrome, is a rare condition characterized by vestibular and cochlear symptoms linked to a defect in the bony roof of the SSC. The prevalence is estimated at 0.5%, with a male predominance. Dehiscence may result from abnorma...

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Detalhes bibliográficos
Main Authors: Hajar Zebbakh, MD, Kenza Sidki, MD, Fatima Zahra Laamrani, PhD, Laila Jroundi, PhD, Omar El Aoufir, PhD
Formato: Artigo
Idioma:English
Publicado em: Elsevier 2024-08-01
Colecção:Radiology Case Reports
Assuntos:
Acesso em linha:http://www.sciencedirect.com/science/article/pii/S193004332400373X
Descrição
Resumo:Superior semicircular canal (SSC) dehiscence syndrome, also known as Minor syndrome, is a rare condition characterized by vestibular and cochlear symptoms linked to a defect in the bony roof of the SSC. The prevalence is estimated at 0.5%, with a male predominance. Dehiscence may result from abnormal bone development, becoming symptomatic due to minimal trauma or pressure changes. Clinical presentation varies based on dehiscence size and location, with dizziness and oscillatory movements triggered by pressure changes or loud sounds being common symptoms. Other manifestations include conductive hearing loss due to the formation of a ``third window'' in the inner ear. Diagnosis typically involves computed tomography, distinguishing SSCDS from otosclerosis. Surgical treatment is reserved for cases of disabling vestibular pathology, often involving sealing the dehiscence through various approaches
ISSN:1930-0433