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Congenital anomaly of the first branchial arch.
Clinical finding: Small, skin-colored papule or nodule anterior to the tragus.
Microscopic finding:Normal epidermis covers the raised papule containing adipose tissue, normal adnexal structures ( hair, sebaceous glands and eccrine glands) and a central cartilaginous core.
Presence of the cartilage is not necessary to make the diagnosis.
Differential diagnosis: Acrochordon.