ISSN 1308-7649 | E-ISSN 2148-3817
Clinical Report
A Challenge for Cochlear Implantation: Duplicated Internal Auditory Canal
1 Department of Otorhinolaryngology-Head and Neck Surgery, Marmara University Pendik Training and Research Hospital, İstanbul, Turkey  
J Int Adv Otol 2016; 12: 199-201
DOI: 10.5152/iao.2016.1440
Key Words: Congenital hearing loss, sensorineural hearing loss, internal auditory canal duplication, temporal bone malformation

Duplication of the internal auditory canal is an uncommon, congenital malformation that can be associated with sensorineural hearing loss owing to aplasia/hypoplasia of the vestibulocochlear nerve. Only 14 such cases have been reported to date. We report the case of a 13-month-old girl with bilateral, congenital, sensorineural hearing loss caused by narrow, duplicated internal auditory canals and discuss the challenges encountered in the diagnosis and treatment of this condition.

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