Transient Neonatal Pustular Melanosis
Pustules and small (2 to 3 mm in diameter) hyperpigmented macules are present
at birth. The macules are surrounded by a collarette of scale that represents
the remnant of a pustule roof. Although the clinical diagnosis usually is
straightforward, if there is uncertainty, a Gram or Wright stain of pustule
fluid will reveal polymorphonuclear neutrophils (PMNs) without organisms.