Cutaneous Defects

Published on 25/03/2015 by admin

Filed under Pediatrics

Last modified 25/03/2015

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Chapter 640 Cutaneous Defects

Accessory Tragi

An accessory tragus typically appears as a single pedunculated, flesh-colored papule in the preauricular region anterior to the tragus. Less commonly, accessory tragi are multiple or bilateral, and may be located in the preauricular area, on the cheek along the line of the mandible (Fig. 640-1), or on the lateral aspect of the neck anterior to the sternocleidomastoid muscle. In contrast to the rest of the pinna, which develops from the 2nd branchial arch, the tragus and accessory tragi derive from the 1st branchial arch. Accessory tragi may occur as isolated defects or in chromosomal 1st branchial arch syndromes that include anomalies of the ears and face, such as cleft lip, cleft palate, and mandibular hypoplasia. An accessory tragus is consistently found in oculo-auriculo-vertebral syndrome

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