Derm Dx: A 10-month-old boy with purpuric plaques

by Kristy Fleming, MD

An otherwise healthy 10-month-old boy presented to the emergency department (ED) with a rapidly progressing rash. His grandmother noted that the child had suffered for a week from a runny nose, mild fatigue and subjective fever.

The child’s pediatrician saw him two days prior to presentation at the ED, and initiated amoxicillin. The morning after starting ...