A patient presents with a chronic, destructive lesion on the pinna of their ear, and they mention having recently traveled to Mexico. Which Leishmania species is the MOST likely ca... A patient presents with a chronic, destructive lesion on the pinna of their ear, and they mention having recently traveled to Mexico. Which Leishmania species is the MOST likely cause of this condition?
Understand the Problem
The question describes a patient with a chronic lesion on their ear after traveling to Mexico and asks to identify the most likely Leishmania species causing the infection. We need to recall the geographic distribution of different Leishmania species and their association with cutaneous leishmaniasis, particularly in Mexico.
Answer
Leishmania mexicana
Based on the search results, the most likely Leishmania species to cause a chronic, destructive lesion on the pinna of the ear in a patient who recently traveled to Mexico is Leishmania mexicana. This is often referred to as "Chiclero's ulcer."
Answer for screen readers
Based on the search results, the most likely Leishmania species to cause a chronic, destructive lesion on the pinna of the ear in a patient who recently traveled to Mexico is Leishmania mexicana. This is often referred to as "Chiclero's ulcer."
More Information
Leishmania mexicana is known to cause cutaneous leishmaniasis, particularly "Chiclero's ulcer," which affects the ears and is associated with travel to Mexico and Central America.
Sources
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