Henoch-Schonlein purpura is a common cause of vasculitis in children. This condition is unusual in infants and children younger than 2 years. We describe a 4-month-old infant with infantile Henoch-Schonlein purpura and review the clinical spectrum, differential diagnoses, and the histopathologic features of the disease. Its relations to Henoch-Schonlein purpura in older children are discussed.
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