Congenital Anomalies

Question 1

Preauricular pits and tags

(accessory tragus or branchial cleft remnant)

Answer 1

• protuberant fleshy papules or pits located anterior to the tragus

Cause: imperfect fusion of the first 2 branchial arches

Incidence: 1 per 100 births

Associations: cleft palate, ocular coloboma, abnormal digits, cardiac defects

- brachio-otorenal dysplasia: external ear anomalies, brachial fistulae, hearing impairment, renal anomalies

- hemifacial microsomia: tag associated with distortion of the pinna

Referral:

• audiology not required unless associated risk factors of family hx