Two particular cases of superior semicircular canal dehiscence related to a procidence of the superior petrous sinus

We report two cases of superior semicircular canal dehiscence related to a dehiscence of the superior petrous sinus that creates a localized notch of the most superior part of the superior semicircular canal. This vascular dehiscence was suspected at CT and was confirmed by MR imaging with identific...

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Bibliographic Details
Published in:	Journal of neuroradiology Vol. 36; no. 4; pp. 240 - 243
Main Authors:	Dubrulle, F, Kohler, R, Vincent, C, Casselman, J
Format:	Journal Article
Language:	English French
Published:	France 01-10-2009
Subjects:	Adult Cranial Sinuses - pathology Humans Magnetic Resonance Imaging Middle Aged Petrous Bone - pathology Semicircular Canals - pathology Syndrome Tomography, X-Ray Computed
Online Access:	Get full text
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Summary:	We report two cases of superior semicircular canal dehiscence related to a dehiscence of the superior petrous sinus that creates a localized notch of the most superior part of the superior semicircular canal. This vascular dehiscence was suspected at CT and was confirmed by MR imaging with identification of the superior petrous sinus in touch with the intralabyrinthine fluid at this level. This not well-known etiology of the superior semicircular canal dehiscence syndrome has to be searched and described by radiologists, allowing an optimal surgical approach.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0150-9861
DOI:	10.1016/j.neurad.2009.02.002