Multiple Bullae Associated with Human Parvovirus B19

A 2-year-old boy was admitted to the emergency department with acute swelling of both lower extremities. Two weeks prior, he had a fever of a duration of 3 days, which was followed by erythema on the cheeks and extremities. Physical examination revealed edematous erythema on both lower extremities with small vesicles, dominant on the left leg (Figure, A). Laboratory data showed a total white blood cell count of 8.2 × 109 /L and a C-reactive protein level of 3.2 mg/L. Initially, the patient received intravenous cefazolin for suspected bacterial cellulitis.

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