Erythematous plaques and papules on a premature infant

A 2240-g boy was born at 33.2 weeks' gestation with nonblanching, deeply erythematous plaques and papules on his back, flanks, and scalp (Fig 1). His mother was positive for group B streptococcus and was undergoing antibiotic suppression for previous cutaneous methicillin-resistant Staphylococcus aureus and urinary tract infections. Intrapartum intravenous penicillin G was administered, and the amniotic sac was artificially ruptured 4 hours before delivery to facilitate labor. The delivery was uncomplicated without concern for chorioamnionitis, but the patient initially required continuous positive airway pressure for respiratory distress with 1- and 5-minute Apgar scores of 7 and 8, respectively.

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