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Congenital internal auditory canal stenosis

Published online by Cambridge University Press:  08 March 2006

Seung Kuk Baek ,
Sung Won Chae  and
Hak Hyun Jung
Seung Kuk Baek
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea.
Sung Won Chae
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea.
Hak Hyun Jung
Affiliation:
Department of Otolaryngology-Head and the Division of Biomedical Science, Korea University College of Medicine, Seoul, Korea.
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Abstract

Congenital internal auditory canal stenosis is a rare cause of sensorineural hearing loss in children. A retrospective analysis including clinical manifestation and radiological findings was made for seven patients who were diagnosed with congenital internal auditory canal stenosis from 1996 to 2002. Chief presenting symptoms were hearing loss, facial nerve palsy, dizziness, and tinnitus. Hearing loss including deafness was found in five cases, vestibular function loss in four cases, and profound functional loss of facial nerve in two cases. In all cases, the diameter of the internal auditory canal was less than 2 mm on high-resolution temporal bone computed tomography (CT) scan. Two cases revealed bilateral internal auditory canal stenosis, and others were unilaterally involved cases. Congenital internal auditory canal stenosis can be an important cause of sensorineural hearing loss, facial nerve palsy, and vestibular dysfunction. High resolution temporal bone CT scan and magnetic resonance (MR) imaging were important tools for diagnosis.

Keywords

Hearing LossSensorineural/CongenitalFacial ParalysisTomographyX-Ray ComputedMagnetic Resonance Imaging
Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 117 , Issue 10 , October 2003 , pp. 784 - 787
Copyright
© Royal Society of Medicine Press Limited 2003

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