Lend Me Your Ears … for a Review of Anatomy, Development, and Pathology of the External Ear
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.
Learning Objective: Review the anatomy, development, and pathology of the external ear by using both original illustrations and cross-sectional imaging.
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
- Neurographics is the peer-reviewed, quarterly educational journal of the American Society of Neuroradiology. The journal includes review articles as well as high-yield case reports that have been solicited from society meetings, including the annual meeting of the ASNR as well as the American Society of Spine Radiology, the American Society of Pediatric Neuroradiology, the American Society of Functional Neuroradiology, and the American Society of Head and Neck Radiology meetings. Unsolicited educational review articles and case reports are also accepted for review at the discretion of the Editor-in-Chief. Submissions focusing on a pictorial approach to educational objectives are highly encouraged. The journal is open access and available online. CME credit is offered for reading review articles and completing activity evaluations through the ASNR Education Connection website: https://www.pathlms.com/asnr
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