Casting New Light on Hand-Foot-and-Mouth Disease

A 3-year-old boy presented to the emergency department for evaluation of 4 days of rash associated with fever and cough. The rash began as a few pink bumps on the right forearm, at the site where a cast had been removed the day prior after 1 month of immobilization for a greenstick fracture, and progressed over the next few days to involve the perioral face, groin, buttocks, and bilateral arms, hands, and feet. He was seen by a dermatologist and referred to the emergency department out of concern for erythema multiforme.

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