Lucio’s phenomenon is an uncommon reaction characterized by severe necrotizing
cutaneous lesions that occurs in patients with Lucio’s leprosy and lepromatous
leprosy. It is considered by some authors as a variant of type 2 or 3 reaction.
Death can occur because of blood dyscrasia or sepsis. Precipitating factors
include infections, drugs and pregnancy. We report a 31-year-old female patient
exhibiting both clinical and histopathological features of lepromatous leprosy
and Lucio’s phenomenon presenting favorable response to treatment. We complement
our report with a literature review of the Brazilian cases of Lucio’s phenomenon
published in Portuguese and English.
A histiocitose de células de Langerhans é proliferação clonal de células fenotipicamente semelhantes às células de Langerhans. Anteriormente denominada Letterer-Siwe, é a forma mais comum e mais grave dessa enfermidade, acometendo sobretudo crianças até os dois anos de idade. São apresentados dois casos dessa rara doença, diagnosticados após parecer dermatológico, destacando-se seus aspectos mais característicos.
Acute Hemorrhagic Edema of Infancy is an infrequent leukocytoclastic vasculitis which occurs almost exclusively in children between 4 months and 2 years of age. It is clinically characterized by the triad fever, purpuric lesions on the face, auricular pinna and extremities, and edema. Although the cutaneous findings are dramatic and of rapid onset, the prognosis is favorable, with spontaneous resolution within 1 to 3 weeks. Three cases are described in which clinical and histopathological findings are characteristic of acute hemorrhagic edema of infancy. Keywords: Edema; Purpura, Schoenlein-Henoch; Vasculitis Resumo: O Edema Agudo Hemorrágico da Infância é uma vasculite leucocitoclástica pouco frequente, que ocorre, quase exclusivamente, em crianças entre 4 meses e 2 anos de idade. Caracteriza-se, clinicamente, pela tríade febre, lesões purpúricas em face, pavilhões auriculares e extremidades e edema. Embora os achados cutâneos sejam dramáticos e de surgimento rápido, o prognóstico é favorável, com resolução espontâ-nea dentro de 1 a 3 semanas. Descrevem-se três casos cujos achados clínicos e histopatológicos são característicos de edema agudo hemorrágico da infância.
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