[Cutaneous leishmaniasis].

Area of Science:

• Parasitology
• Infectious Diseases
• Epidemiology

Background:

• Cutaneous leishmaniasis is a zoonotic parasitic disease caused by Leishmania parasites, transmitted by Phlebotomus sand-flies.
• Reservoirs include rodents and dogs, with global distribution across the Americas, Asia, Europe, and Africa.
• Epidemiology is influenced by environmental, migratory, and climatic factors.

Purpose of the Study:

• To provide an overview of cutaneous leishmaniasis, covering its transmission, epidemiology, clinical presentation, and treatment.
• To highlight the importance of understanding the parasite's life cycle and host-parasite interactions.
• To discuss current therapeutic strategies and their limitations.

Main Methods:

• Review of existing literature on Leishmania parasites and leishmaniasis.
• Analysis of epidemiological data and influencing factors.
• Examination of clinical presentations and diagnostic classifications based on isoenzymes.
• Evaluation of therapeutic options and their efficacy/safety profiles.

Main Results:

• Leishmania parasites exist as dimorphic organisms within host cells and as flagellated protozoa in vectors.
• Common clinical presentations include crusted, ulcerated nodules, and plaques.
• Spontaneous resolution occurs within one month to six years.
• Antimony compounds are the standard treatment but require careful monitoring due to toxicity.

Conclusions:

• Cutaneous leishmaniasis is a complex disease with varied clinical outcomes influenced by parasite virulence and host immunity.
• Effective and safe therapeutic options remain limited, emphasizing the need for ongoing research.
• Understanding the natural history and treatment challenges is crucial for managing this global health issue.