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Free Content Lend Me Your Ears … for a Review of Anatomy, Development, and Pathology of the External Ear

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The external ear can be divided into the pinna and the external auditory canal. Although many conditions that affect the pinna are readily identifiable on clinical examination, radiologists add further value to patient care through imaging evaluation of the external auditory canal and adjacent structures. Thus, an understanding of the external ear will help us to provide meaningful reports for our referring clinicians. This review covers the anatomy and development of the pinna and the external auditory canal, as well as imaging appearances of common pathologies of the external ear.

Learning Objective: Review the anatomy, development, and pathology of the external ear by using both original illustrations and cross-sectional imaging.
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Keywords: CN = cranial nerve; EAC = external auditory canal; NOE = necrotizing otitis externa; OE = otitis externa; TM = tympanic membrane

Document Type: Research Article

Publication date: 01 November 2017

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. CME credit for review articles may be claimed up to 3 years after an article's publication date. Visit to view all available CME courses.
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