From multiple myeloma to leishmaniasis: The cause is fever!

Leishmaniasis is a vector-borne parasitic disease that constitutes a major public health problem. Leishmaniasis presents with various clinical manifestations, from skin involvement to life-threatening visceral disease. Fever of unknown origin should be considered in the differential diagnosis. In this case, we describe a patient referred with a diagnosis of multiple myeloma, but ultimately diagnosed with leishmaniasis based on our evaluation, to draw attention to this disease.