Neonatal pustular melanosis is a transient, benign, self-limited condition of unknown aetiology.
This starts as small (2-4mm) pustules that rupture easily, though may persist for several days on the thicker areas of skin.
A thin white scale remains around each denuded pustule, and a brown hyperpigmented macule appears within hours.
These are found on the neck, upper chest, back, and buttocks. Occasionally, the palms, soles, and scalp are affected.
Reference: Silverman RA. ‘Neonatal pustular melanosis’ Medscape. Sept 2012 (this link also contains a picture of the condition).
First published: 16/06/15