Cutaneous leishmaniasis lesion on the skin of a 17-year-old boy after treatment with antimony (pentavalent antimonial). This skin condition is caused


Cutaneous leishmaniasis lesion on the skin of a 17-year-old boy after treatment with antimony (pentavalent antimonial). This skin condition is caused by infection by Leishmania protozoan parasites. They are transmitted to humans through the bite of an infected sandfly. The cutaneous (skin) form is the most common. The lesions generally heal, though scarring is possible. Treatment is by drugs or by cryotherapy. Antimonial drugs (containing the metalloid element antimony) are highly toxic, but are used to avoid destructive and disfiguring lesions. Leishmania parasites are found in subtropical and tropical regions worldwide. This case occurred in Peru.


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Photo credit: © DR P. MARAZZI/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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