Transient neonatal pustular melanosis.

A black male infant had congenital lesions that consisted of pigmented macules, many of which had a peripheral collarette of scale, and vesicopustules. The appearance of this patient fit the clinical syndrome of transient neonatal pustular melanosis, a newly described vesicopustular disease of the newborn. Differential diagnosis in this patient included the following conditions: erythema toxicum neonatorum, staphylococcal pyoderma, and herpes simplex.