Sporotrichosis occurs after fungal implantation of Sporothrix spp. in the skin, and is the main subcutaneous mycosis in Latin America. Here we describe three atypical cases of the disease. The first case report an extra-cutaneous occurrence of the disease with joint infection; the second one describes a patient with bilateral lymphocutaneous form of sporotrichosis; and the third shows a zoonotic cutaneous case with the development of an erythema nodosum as a hypersensitivity reaction. These cases show the disease importance on the region and the necessity of fungal culture to the diagnosis confirmation.

A leptospirose é uma doença infecciosa caracterizada pelo envolvimento de múltiplos sistemas. O acometimento pulmonar é comum, geralmente leve e freqüentemente negligenciado. Quando os sintomas respiratórios são a principal manifestação da doença, existe grande possibilidade de confusão diagnóstica. Os autores apresentam um caso de pneumonia grave por leptospirose, com o objetivo de chamar a atenção para esta possibilidade etiológica no diagnóstico diferencial das pneumonias comunitárias, especialmente quando há um perfil epidemiológico suspeito.

Leptospirosis is an infectious disease characterized by multisystemic involvement. The lung involvement is common, usually mild and frequently neglected. When respiratory manifestations are prominent in a patient with leptospirosis, there is the potential for diagnostic confusion. The authors report a severe case of leptospiral pneumonia, with the objective of highlighting this etiological possibility of community pneumonia, especially when there is suspicion of epidemic features.