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Free Content The Ossicles in Pediatric Conductive Hearing Loss

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Congenital ossicular anomalies are important, often-missed causes of pediatric conductive hearing loss that may occur in isolation or as part of a syndrome. Accurately identifying and describing ossicular anomalies is important for determining treatment options and surgical planning. We review ossicular development, anatomy, and CT imaging findings of both nonsyndromic and syndromic congenital anomalies, including branchio-oto-renal syndrome, Treacher Collins syndrome, CHARGE (Coloboma of the eye, Heart defects, Atresia of the choanae, Retardation of growth and/or development, Genital and/or urinary abnormalities, and Ear abnormalities and deafness) syndrome, 22q11.2 deletion syndrome, hemifacial microsomia, Cornelia de Lange syndrome, and cleidocranial dysostosis.

Learning Objective: Review normal anatomy and development of the ossicles, and identify imaging features of various congenital ossicular anomalies.
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Keywords: BOR = branchio-oto-renal; CHARGE = Coloboma of the eye, Heart defects, Atresia of the choanae, Retardation of growth and/or development, Genital and/or urinary abnormalities, and Ear abnormalities and deafness; CN = cranial nerve; EAC = external auditory canal; HFM = hemifacial microsomia; IAC = internal auditory canal; MEC = middle ear cavity; SCC = semicircular canal

Document Type: Research Article

Publication date: October 1, 2020

More about this publication?
  • Neurographics is the peer-reviewed, bimonthly educational journal of the American Society of Neuroradiology. The journal comprises articles selected from material presented at the ASNR Annual Meeting. Neurographics also publishes other high-quality submissions that are primarily educational and have a high emphasis on a pictorial approach. Neurographics offers CME credit for reading review articles and completing quiz-based self-assessment activities.

    Visit the ASNR Education Connection to view all available CME courses.

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