Neonatal acne is now referred to as neonatal cephalic pustulosis to distinguish it from infantile and adolescent acne.
Neonatal cephalic pustulosis is a benign self-limiting condition that is estimated to occur in 25% of neonates.
Pathogenesis⬆⬇
Recent data suggest the papules and pustules in this condition may be the result of an inflammatory response to Malassezia spp.
Increased rates of sebum secretion during the neonatal period are also thought to play a role.
Clinical Manifestations⬆⬇
Presents at 2 to 3 weeks of age as discrete erythematous papules and pustules on the cheeks, or, less often, on the forehead, chin, scalp, and chest (Figs. 3.1 and 3.2).
Unlike infantile and adolescent acne there are no comedones and the course is self-limiting.
Eruption is asymptomatic.
Resolves spontaneously in weeks to months.
Diagnosis⬆
Diagnosis is usually made clinically.
A Giemsa stain may show yeast forms, neutrophils, and other inflammatory cells.
When in doubt a Gram stain can rule out bacterial folliculitis and a KOH can rule out candidiasis.