Ear
Congenital anomalies
Accessory tragi
Author: Nat Pernick, M.D.
Last author update: 1 October 2013
Last staff update: 25 November 2024 (update in progress)
Copyright: 2002-2024, PathologyOutlines.com, Inc.
PubMed Search: Accessory tragi
Table of Contents
Definition / general | Treatment | Gross description | Microscopic (histologic) description | Differential diagnosisCite this page: Pernick N. Accessory tragi. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/earaccessorytragi.html. Accessed December 19th, 2024.
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
Treatment
- 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
- Squamous papilloma: no cartilage, no adnexae
