| The ear deformities in mandibulofacial dysostosis (Treacher Collins syndrome). | |
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MedLine Citation:
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PMID: 7273449 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Bilateral conductive deafness is common in mandibulofacial dysostosis with or without atresia of the external auditory meatus. This deafness is due to a wide range of deformities of the ossicular chain associated with a characteristic reduction in the size of the middle ear cavity. The attic and antrum are particularly affected and usually have a slit-like appearance on coronal section tomograms. The inner ear is essentially normal. The tomographic appearances of 44 ears from 22 patients with mandibulofacial dysostosis are described as well as the operative findings in 14. These were correlated with induced ear deformities in an animal model that had features characteristic of human mandibulofacial dysostosis. A review of the findings in the animal model suggests a very close correspondence with the human ear anomalies described at radiological investigation, operation and post-mortem examination. The lesions are largely symmetrical and this, with the characteristic slit attic, helps to differentiate mandibulofacial dysostosis from lesions with different aetiology but similar features such as facial microsomia. The prospects for surgical correction of the deafness in mandibulofacial dysostosis range from very good in mild cases with ossicular discontinuity, to poor where there is severe atresia. The importance of tomograms at an early age is stressed. |
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Authors:
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P D Phelps; D Poswillo; G A Lloyd |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical otolaryngology and allied sciences Volume: 6 ISSN: 0307-7772 ISO Abbreviation: Clin Otolaryngol Allied Sci Publication Date: 1981 Feb |
Date Detail:
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Created Date: 1981-11-18 Completed Date: 1981-11-18 Revised Date: 2005-05-02 |
Medline Journal Info:
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Nlm Unique ID: 7701793 Medline TA: Clin Otolaryngol Allied Sci Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 15-28 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Deafness / etiology Ear / abnormalities*, embryology, pathology Facial Nerve / abnormalities Humans Mandibulofacial Dysostosis / complications*, radiography, surgery |
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