Congenital anomalies
Accessory tragi

Author: Nat Pernick, M.D. (see Authors page)

Revised: 7 February 2018, last major update October 2013

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Accessory tragi

Cite this page: Pernick, N. Accessory tragi. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earaccessorytragi.html. Accessed October 19th, 2018.
Definition / general
  • Also called accessory or supernumerary ear, accessory auricle, polyotia
  • Appears at birth; incidence of 0.2 to 0.5%
  • May be related to second branchial arch anomalies
  • Usually no associated hearing loss or anomalies (Int J Pediatr Otorhinolaryngol 2002;63:25)
  • Associated in some cases with cleft lip / palate, mandibular hypoplasia, oculoauriculovertebral dysplasia (Goldenhar syndrome, OMIM 164210: HEMIFACIAL MICROSOMIA; HFM [Accessed 5 February 2018] )
  • Solitary or multiple, unilateral or bilateral, sessile or pedunculated, soft or cartilaginous
  • Simple excision
Gross description
  • Skin covered nodule, often anterior to auricle
Microscopic (histologic) description
  • Skin with cutaneous adnexae and central cartilage (resembles normal external auricle)
Differential diagnosis