Any information contained in this pdf file is automatically generated from digital material submitted to EPOS by third parties in the form of scientific presentations. References to any names, marks, products, or services of third parties or hypertext links to third-party sites or information are provided solely as a convenience to you and do not in any way constitute or imply ECR’s endorsement, sponsorship or recommendation of the third party, information, product or service. ECR is not responsible for the content of these pages and does not make any representations regarding the content or accuracy of material in this file. As per copyright regulations, any unauthorised use of the material or parts thereof as well as commercial reproduction or multiple distribution by any traditional or electronically based reproduction/publication method ist strictly prohibited. You agree to defend, indemnify, and hold ECR harmless from and against any and all claims, damages, costs, and expenses, including attorneys’ fees, arising from or related to your use of these pages. Please note: Links to movies, ppt slideshows and any other multimedia files are not available in the pdf version of presentations. www.myESR.org Purpose Congenital inner ear anomalies are complex developmental disorders that are initially assessed with temporal bone CT. It has been reported that only about 5% to 15% of congenitally deaf individuals demonstrate radiographical abnormality and the detected abnormalities have a large spectrum of imaging findings. These anomalies have been classified by Jackler et al. in 1987, a classification that has been revised in 2002 by Sennaroglu and Saatci. The purpose of this study was to evaluate the prevalence of radiologically detectable inner ear abnormalities in patients with congenital sensorineural hearing loss (SNHL) evaluated with high resolution CT of the temporal bone and to assess the relative frequency of different malformations of the inner ear among the detectable anomalies.