Prevalence of Superior Semicircular Canal Dehiscence and It’s Overlying Bone Thickness in Computed Tomography
نویسندگان
چکیده
منابع مشابه
Dehiscence or thinning of bone overlying the superior semicircular canal in a temporal bone survey.
OBJECTIVE To determine the incidence and etiology of dehiscences of bone overlying the superior semicircular canal in a temporal bone archive. DESIGN A microscopic study was performed of 1000 temporal bones from 596 adults in a university hospital registry. Specimens were sectioned vertically in the plane of the superior semicircular canal. Measurements of minimum bone thickness over the supe...
متن کاملEffect of semicircular canal dehiscence on contralateral canal bone thickness.
OBJECTIVES Our objective was to determine if the existence of dehiscence in the superior or posterior semicircular canal was associated with the thinning of the bone roof in the rest of the vertical canals (superior or posterior). METHODS The thickness of the superior and posterior semicircular canals contralateral to a dehiscence was studied using computerized tomography and compared statist...
متن کاملSuperior semicircular canal dehiscence syndrome
Key points • The Tullio phenomenon is sound-induced vertigo, nystagmus, or both. • Hennebert sign is pressure-induced vertigo, nystagmus, or both, elicited by insufflation of the external auditory canal. • Typically, in affected patients with superior semicircular canal dehiscence syndrome, there is a several-year history of symptoms that may include sound-induced vertigo (Tullio phenomenon), p...
متن کاملSuperior semicircular canal dehiscence syndrome
This article discusses superior semicircular canal dehiscence syndrome. This syndrome has been identified in 1998 by Minor etal. This condition is caused due to dehiscence of bone overlying the superior semicircular canal. This causes vertigo, oscillopsia, dysequilibrium due to exposure to sound. Ultra high resolution CT scans help in identification of this condition. This dehiscence has been c...
متن کاملTemporal Bone Fracture Causing Superior Semicircular Canal Dehiscence
Importance. Superior semicircular canal dehiscence (SCD) is a third window lesion of the inner ear causing symptoms of vertigo, autophony, tinnitus, and hearing loss. A "two-hit" hypothesis has traditionally been proposed, whereby thinly developed bone overlying the superior canal is disrupted by a sudden change in intracranial pressure. Although the symptoms of SCD may be precipitated by head ...
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ژورنال
عنوان ژورنال: Journal of Clinical Otolaryngology Head and Neck Surgery
سال: 2012
ISSN: 1225-0244,2713-833X
DOI: 10.35420/jcohns.2012.23.2.206