The external structures of the ear may aid in diagnosing some conditions by the presence or absence of normal landmarks and abnormal features including: earlobe creases, preauricular pits, and preauricular tags.
Review Date 8/29/2020
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.