Preauricular sinus, nephrolithiasis, infantine eczema and natal tooth: a new association

Ayse Esra Yılmaz, Evren Sarıfakıoglu, S Aydemır, T Taş, E Orün, H Aydemır
European Journal of Dermatology: EJD 2011, 21 (2): 234-7
Preauricular sinuses (ear pits) are common congenital abnormalities. The incidence of preauricular sinus is widely varied. Usually asymptomatic, they manifest as small hollows adjacent to the external ear near the anterior margin of the ascending limb of the helix, most frequently on the right side. Preauricular sinuses can be either inherited or sporadic. They may be bilateral, increasing the likelihood of being inherited, in 25-50% of cases. Preauricular sinuses are features of other conditions or syndromes in 3-10% of cases, primarily in association with deafness and branchio-oto-renal (BOR) syndrome. When other congenital anomalies coexist with these sinuses, auditory testing and renal ultrasound should be considered. A girl, who was three months and 20 days old, was presented because of the co-existence of a right infected preauricular sinus, nephrolithiasis, infantile eczema and a natal tooth.

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