| Semicircular canal dehiscence in HR multislice computed tomography: distribution, frequency, and clinical relevance. | |
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MedLine Citation:
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PMID: 21739095 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The literature about bony defects in the semicircular canal system is highly inconsistent. Therefore, we analyzed a series of 700 high-resolution multislice CT examinations of the temporal bone for semicircular canal dehiscencies. An unselected group of ENT patients with different clinical symptoms and variable age was chosen. We found semicircular canal dehiscence in 9.6% of temporal bones, superior semicircular canal was affected mostly (8%), less common posterior semicircular canal (1.2%); only in 3 cases (0.4%), lateral semicircular canal showed dehiscence. In 60% of SSC dehiscence, we registered bilateral manifestation. The so-called "third mobile window" in semicircular canal dehiscence causes a great variety of clinical symptoms like vertigo, nystagmus, oscillopsies, hearing loss, tinnitus and autophonia. Comparison with anatomic studies shows that CT examination implies the risk of considerable overestimation; this fact emphasizes the important role of clinical and neurophysiological testing. |
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Authors:
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H Stimmer; K F Hamann; S Zeiter; A Naumann; E J Rummeny |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-8 |
Journal Detail:
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Title: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery Volume: - ISSN: 1434-4726 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9002937 Medline TA: Eur Arch Otorhinolaryngol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Institut für Radiologie, Klinikum r. d. Isar, TU München, Ismaningerstr. 22, 81675, Munich, Germany, stimmer@roe.med.tu-muenchen.de. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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