Publication:
Patterns of anomalies of structures of the middle ear and the facial nerve as revealed in newborn temporal bones

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Issued Date

2013

Resource Type

Article

File Type

application/pdf

ISSN

15317129

DOI

10.1097/MAO.0b013e318283987f

Other identifier(s)

2-s2.0-84881372423

Rights Holder(s)

Scopus

Bibliographic Citation

Otology and Neurotology. Vol 34, No.6 (2013), p.1121-1126

Suggested Citation

Tóth M., Sirirattanapan J., Mann W. Patterns of anomalies of structures of the middle ear and the facial nerve as revealed in newborn temporal bones. Otology and Neurotology. Vol 34, No.6 (2013), p.1121-1126. doi:10.1097/MAO.0b013e318283987f Retrieved from: https://hdl.handle.net/20.500.14740/6602

Title

Patterns of anomalies of structures of the middle ear and the facial nerve as revealed in newborn temporal bones

Author(s)

Tóth M.
 Sirirattanapan J.
 Mann W.

Abstract

HYPOTHESIS: The purpose of this study is to offer new data about facial nerve malformations in the tympanic cavity. BACKGROUND: Prospective anatomic study of newborns to demostrate the submacroscopic anatomy of the intratympanic facial nerve and its surrounding structures by malformations. METHODS: Step-by-step microdissection of 12 newborn temporal bones and histologic evaluation of 4 middle ears showing multiple malformations. RESULTS: Four of 12 temporal bones presented malformation in the middle ear. All 4 temporal bones showed developmental failures of the stapes, and 3 of them had malposition of the tympanic portion of the facial nerve. In 3 cases, there was an oval window atresia, and in 1 case, the rim of the oval window was not ossified and was positioned medial to the stapes. CONCLUSION: Malformation or displacement of the stapes can be an indirect sign for facial nerve malformation. The most common site for facial nerve malformation is the tympanic portion. The tympanic segment of the nerve is devoid of bony covering in association with these anomalies of the stapes. © 2013, Otology &Neurotology, Inc.

Subject(s)

Article
 Cadaver
 Case report
 Congenital malformation
 Facial nerve
 Hemispheric dominance
 Human
 Immunohistochemistry
 Inner ear
 Middle ear
 Newborn
 Pathology
 Stapes
 Temporal bone
 Tissue fixation
 Vestibule
 Facial nerve
 Middle ear
 Temporal bone
 Cadaver
 Ear, Inner
 Ear, Middle
 Facial Nerve
 Functional Laterality
 Humans
 Immunohistochemistry
 Infant, Newborn
 Oval Window, Ear
 Stapes
 Temporal Bone
 Tissue Fixation
 Cadaver
 Ear, Inner
 Ear, Middle
 Facial Nerve
 Functional Laterality
 Humans
 Immunohistochemistry
 Infant, Newborn
 Oval Window, Ear
 Stapes
 Temporal Bone
 Tissue Fixation

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URI

https://hdl.handle.net/20.500.14740/6602

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Scopus: Year 1983-2021

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