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Narrow duplicated internal auditory canal: radiological findings and review of the literature.
Pediatr Radiol. 2005 Dec; 35(12):1220-3.PR

Abstract

Narrow duplicated internal auditory canal (IAC) is a rare malformation of the temporal bone that is associated with ipsilateral congenital sensorineural hearing loss. This may be an isolated finding or a part of a syndrome. Radiological examination should demonstrate aplasia or hypoplasia of the neural components of the narrow IAC, to guide the surgical approach. We report a 7-year-old boy with Klippel-Feil syndrome with a narrow double IAC with no sensorineural hearing loss but with conductive hearing loss. In this patient, the IAC consisted of two separate narrow bony canals clearly seen on 3D temporal bone CT and one nerve that was delineated on MRI. The contralateral external auditory canal was stenotic and the ossicles were dysplastic.

Authors+Show Affiliations

Department of Radiology, Faculty of Medicine, Dokuz Eylül University, 35340 Balçova, Izmir, Turkey. oilhandemir@yahoo.com.trNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article
Review

Language

eng

PubMed ID

16079980

Citation

Demir, Ozgün Ilhan, et al. "Narrow Duplicated Internal Auditory Canal: Radiological Findings and Review of the Literature." Pediatric Radiology, vol. 35, no. 12, 2005, pp. 1220-3.
Demir OI, Cakmakci H, Erdag TK, et al. Narrow duplicated internal auditory canal: radiological findings and review of the literature. Pediatr Radiol. 2005;35(12):1220-3.
Demir, O. I., Cakmakci, H., Erdag, T. K., & Men, S. (2005). Narrow duplicated internal auditory canal: radiological findings and review of the literature. Pediatric Radiology, 35(12), 1220-3.
Demir OI, et al. Narrow Duplicated Internal Auditory Canal: Radiological Findings and Review of the Literature. Pediatr Radiol. 2005;35(12):1220-3. PubMed PMID: 16079980.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Narrow duplicated internal auditory canal: radiological findings and review of the literature. AU - Demir,Ozgün Ilhan, AU - Cakmakci,Handan, AU - Erdag,Taner Kemal, AU - Men,Süleyman, Y1 - 2005/08/04/ PY - 2005/03/02/received PY - 2005/06/12/accepted PY - 2005/05/30/revised PY - 2005/8/5/pubmed PY - 2006/9/15/medline PY - 2005/8/5/entrez SP - 1220 EP - 3 JF - Pediatric radiology JO - Pediatr Radiol VL - 35 IS - 12 N2 - Narrow duplicated internal auditory canal (IAC) is a rare malformation of the temporal bone that is associated with ipsilateral congenital sensorineural hearing loss. This may be an isolated finding or a part of a syndrome. Radiological examination should demonstrate aplasia or hypoplasia of the neural components of the narrow IAC, to guide the surgical approach. We report a 7-year-old boy with Klippel-Feil syndrome with a narrow double IAC with no sensorineural hearing loss but with conductive hearing loss. In this patient, the IAC consisted of two separate narrow bony canals clearly seen on 3D temporal bone CT and one nerve that was delineated on MRI. The contralateral external auditory canal was stenotic and the ossicles were dysplastic. SN - 0301-0449 UR - https://www.unboundmedicine.com/medline/citation/16079980/Narrow_duplicated_internal_auditory_canal:_radiological_findings_and_review_of_the_literature_ L2 - https://dx.doi.org/10.1007/s00247-005-1547-y DB - PRIME DP - Unbound Medicine ER -