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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Published inRadiology case reports Vol. 19; no. 8; pp. 3321 - 3323
Main Authors Zebbakh, Hajar, Sidki, Kenza, Laamrani, Fatima Zahra, Jroundi, Laila, Aoufir, Omar El
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.08.2024
Elsevier
Subjects
Case Report
Dehiscence
Hearing loss
Minor
Superior semicircular canal
CT
Superior semicircular canal
Minor
Dehiscence
Hearing loss
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Summary: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
Bibliography:ObjectType-Case Study-2
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ISSN:1930-0433
1930-0433
DOI:10.1016/j.radcr.2024.04.075