A Case of Cutaneous Leishmaniasis with Mucosal Involvement in the Northern United States

Cutaneous leishmaniasis (CL) is a vector-borne parasitic infection endemic to many sub-tropical regions worldwide. In the Americas, Leishmania braziliensis is responsible for most reported CL cases. Variable symptom presentation and susceptibility to secondary infection make diagnosing CL a difficult proposition for physicians who may not encounter cases frequently. We present the case of a 50-year-old man with multiple progressive lesions, diagnosed initially as a bacterial infection, who presented to a North American emergency department after several unsuccessful trials of antibiotic therapy. Eventually, polymerase chain reaction testing of a wound biopsy sample confirmed the presence of L. braziliensis. After a complicated course, the patient's infection resolved after tailored antiparasitic therapy. This case highlights the need to include travel history in the evaluation of atypical dermatologic infections.