Preauricular tags and pits – a minor anomaly in newborns, and when further investigation is needed

Abstract

Preauricular skin tags represent a commonly seen minor congenital anomaly of the auricle that may occur either in isolation or together with other dysmorphic features or malformations as part of a syndrome. Even minor dysmorphic features can lead to a genetic diagnosis with far-reaching, systemic implications. Neonatologists must be familiar with this common presentation and have good communication with the medical geneticist to identify a possible underlying genetic condition early and manage each case appropriately. Ear abnormalities such as preauricular tags and pits may be associated with additional specific abnormalities such as hearing loss or renal malformations that need to be considered and further investigated. This article aims to provide data and guidance for the management of neonates with preauricular tags or preauricular pits, a minor congenital anomaly of the ear, where early recognition of syndromes based on minor anomalies is ideal.