| • | often present at birth (even in utero) |
| • | benign; uncommon disorder seen primarily in black infants |
| • | TRANSIENT: quickly ruptures and leaves a typical collarette |
| • | NEONATAL PUSTULAR: the original lesion is a vesicopustule very superficial (can wipe off), which may be present at birth (even in utero) |
| • | MELANOSIS: brownish pigmented macules develop at the site of each resolving pustule |
| • | trunk, palms, and soles; asymptomatic and self-limiting |
| • | scraping (Tzank) of pustule à PMN’s (= polymorphic nucleocytes: AKA neutrophils) |
| • | ddx: erythema toxicum neonatorum, viral infections, IP, staph impetigo |
mnemonic: neonatal pustular melanosis – npm à PMN’s on tzank smear
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