Congenital anomalies
Accessory tragi

Topic Completed: 1 October 2013

Revised: 04 January 2019

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PubMed Search: Accessory tragi

Nat Pernick, M.D.
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Cite this page: Pernick N. Accessory tragi. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earaccessorytragi.html. Accessed September 23rd, 2020.
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 4 January 2019] )
  • 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
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