Pruritic rash in a child – Clinical case

Alba, Diana; Pimenta, Sofia; Machado, Ângela; Ferreira, Jorge Abreu

http://hdl.handle.net/10400.16/3790

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Authors

Alba, Diana

Pimenta, Sofia

Machado, Ângela

Ferreira, Jorge Abreu

Abstract(s)

Urticaria multiforme (UM) is an allergic hypersensitivity reaction characterized by the acute onset of polycyclic and annular wheals with ecchymotic centers. It is more common in children under 4 years of age, who typically present with a pruritic rash and nontoxic appearance. The diagnosis is clinical. The condition usually has a favorable response to antihistamines and self-limited course. UM is probably underdiagnosed as it is often confused with erythema multiforme and serum sickness-like reaction. Herein is reported a case of UM in a four-year-old boy, followed by a review of the literature on the subject.