[An infant with blisters post partum].

A newborn boy was sent to the hospital immediately after birth because of pre-auricular vesicles on both cheeks. There were no other congenital anomalies. First we thought the lesions were caused by friction or by impetigo bullosa. Treatment with local antibiotic cream did not resolve the blisters. After 1 month the diagnosis 'focal pre-auricular dermal dysplasia' was postulated.