Alarmed parents bring their healthy 14-month-old son to the office for evaluation of a rash that appeared on his face and arms 3 days ago. He had a fever and runny nose at that time, but the fever has since resolved and he is behaving normally.
After an otherwise normal pregnancy, a male infant was born at 37 weeks gestational age via emergency cesarean delivery for decreased or absent fetal movement with multiple late and variable heart rate decelerations.
The anxious parents of a previously healthy 19-month-old boy bring the child to the emergency department for evaluation of progressive rash that began 4 months ago. The skin eruption began as small blisters on his knees, which became tense and ruptured, eventually evolving to red-pink scaly plaques. Over the next few months, the boy developed similar lesions on his hands, elbows, neck, perineal area, and face, with sparing of the mucous membranes.