Abstract
A 23-year-old Japanese-Brazilian was stung in the right side of his trunk by an insect at a visit to Brazil in January 2008. About one and a half months later, an asymptomatic ulcer appeared on the same site. As a local physician had treated it in vain, he was referred to our outpatient clinic. The nodule with erythema on the right side of the chest was 5 cm in diameter, slightly elevated at the margin, and accompanied by an ulcer. Histopathologically, it showed the picture of a granuloma. A number of amastigotes were observed on a Giemsa staining sample from the tissue exudate. The polymerase chain reaction method and direct sequencing analysis identified the species as Leishmania (Viannia) braziliensis (L. (V.) braziliensis). Therefore, the diagnosis was made as cutaneous leishmaniasis due to L. (V.) braziliensis. A treatment with anti-leishmaniasis agents was planned, because cutaneous leishmaniasis due to L. (V.) braziliensis sometimes induces mucocutaneous leishmaniasis. However, the patient did not visit our outpatient clinic again, and no treatment was performed.
