Sociedade Portuguesa de Dermatologia e Venereologia
Doi
Abstract
Lupus vulgaris is a clinical variant of cutaneous tuberculosis, a rare subtype of extrapulmonary infection caused by the Mycobacterium tuberculosis complex. A paucibacillary form associated with high degrees of immunity, predominantly in the face, may present several clinical and histopathological differential diagnoses, which makes its diagnosis challenging. We present a case of lupus vulgaris in an immunocompetent patient, whose initial clinical presentation and histopathology did not suggest the condition. The objective is to highlight the relevance of the hypothesis of cutaneous tuberculosis as an important differential diagnosis, especially in endemic areas.Lúpus vulgar é uma variante clínica de tuberculose cutânea, subtipo raro de infecção extrapulmonar causada pelo complexo Mycobacterium tuberculosis. Forma paucibacilar associada a alto grau de imunidade, predominantemente na face, pode apresentar vários diagnósticos diferenciais clínicos e histopatológicos, o que torna seu diagnóstico desafiador. Apresentamos um caso de lúpus vulgar em paciente imunocompetente, cuja apresentação clínica e histopatológica iniciais não sugeriam o diagnóstico. O objetivo é ressaltar a relevância da hipótese de tuberculose cutânea como importante diagnóstico diferencial, principalmente em áreas endémicas
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