Accessory tragus
Last Updated: 2020-10-08
ICD11: LA21.Y
Last Updated: 2020-10-08
Author(s): Anzengruber F., Navarini A.
ICD11: LA21.Y
Meckel, 1826
Congenital developmental anomaly in which the tragus of the ear grows at a wrong location.
Present at birth, in 1-2 / 1'000 newborns, 10% on both sides.
Unknown.
Skin-coloured, hard palpable, vellus-haired, exophytic growing nodules or bumps. The location is closely associated with the tragus (in front of or directly on). May occur on both sides.
Palpable centre with cartilage. Less frequently, there may be several accessory tragi, in which case they are located between the tragus and the corner of the mouth, or anterior to the sternocleidomastoid muscle.
Can be useful as a clue for malformations and syndromes:
Usually on the face.
If the excision is too shallow, the deeper cartilaginous core may not be removed.
Missing clarification and missing
None possible.
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