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Mucosal leishmaniasis: epidemiological and clinical aspects
Marcus Miranda Lessa1, Hélio Andrade Lessa2, Thomas W N Castro3
1Associate researcher in the immunology and otorhinolaryngology units of the HUPES at the Federal University of Bahia. Doctor of sciences in otorhinolaryngology at FMUSP. Fellow in nasosinusal endoscopic surgery, Graz university, Austria.
Brazilian Journal of Otorhinolaryngology
|February 19, 2008
Summary
Mucosal leishmaniasis, a complication of New World leishmaniasis, can develop years after initial infection. The host immune response may play a role in the severity of these lesions.
Area of Science:
- Tropical Medicine
- Infectious Diseases
- Parasitology
Background:
- Leishmaniasis is a global health concern with 12 million estimated cases and 400,000 new cases annually.
- New World leishmaniasis is endemic in Brazil and Latin America, posing a significant public health challenge.
- Mucosal leishmaniasis represents a severe manifestation, often occurring years after the initial cutaneous form.
Purpose of the Study:
- To enhance understanding of mucosal leishmaniasis.
- To share clinical experience from the Immunology and Otolaryngology Departments at Professor Edgar Santos University Hospital.
- To contribute to the knowledge base regarding leishmaniasis in Brazil.
Main Methods:
- This study is based on clinical observations and departmental experience.
- No specific experimental methods were detailed in the provided abstract.
- The focus is on summarizing existing knowledge and clinical insights.
Main Results:
- Cutaneous leishmaniasis is the predominant form in the New World.
- Mucosal lesions can manifest concurrently with or years after cutaneous leishmaniasis.
- The nasal mucosa is the most frequently affected site, but lesions can extend to the lips, mouth, pharynx, and larynx.
Conclusions:
- Mucosal leishmaniasis is primarily caused by *L. braziliensis braziliensis*.
- Both parasite-specific factors and host immune responses are implicated in the pathogenesis of mucosal leishmaniasis.
- Further research is needed to fully elucidate the complex interplay between the parasite and the host immune system in disease progression.
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