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Related Experiment Video

Updated: Oct 10, 2025

Cutaneous Leishmaniasis in the Dorsal Skin of Hamsters: a Useful Model for the Screening of Antileishmanial Drugs
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Atypical Cutaneous Leishmaniasis Variant.

Jaime A Hidalgo-Enríquez1, Alberto Moscona-Nissan2, Sayonara Zaputt-Cabrera3

  • 1School of Medicine, Universidad Espíritu Santo, Guayaquil, ECU.

Cureus
|December 13, 2021
PubMed
Summary
This summary is machine-generated.

A rare verrucous form of cutaneous leishmaniasis, a parasitic skin infection, was identified in a shrimp farmer in Ecuador. Prompt treatment with meglumine antimoniate led to significant improvement.

Keywords:
amastigotescutaneous leishmaniasisgranulomainfectologyverrucous plaque

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Area of Science:

  • Tropical Medicine
  • Parasitology
  • Dermatology

Background:

  • Leishmaniasis is a diverse parasitic disease transmitted by sandflies, with cutaneous leishmaniasis endemic in over 80 countries.
  • While classic forms are common, rare variants of cutaneous leishmaniasis present diagnostic challenges, particularly in endemic areas and travelers.

Observation:

  • A case of atypical cutaneous leishmaniasis presented as a single, verrucous plaque on the thigh of a 35-year-old male shrimp farmer in coastal Ecuador.
  • The lesion, evolving over eight months, exhibited a scaly, erythematous, violaceous appearance with irregular borders.

Findings:

  • Histopathology revealed lymphohistiocytic inflammatory infiltrate with plasmocytes and granulomatous inflammation.
  • Giemsa staining confirmed the presence of intracellular amastigotes (Leishman-Donovan bodies), indicative of Leishmania infection.

Implications:

  • This case highlights the importance of considering rare variants of cutaneous leishmaniasis in differential diagnoses for persistent skin lesions.
  • Early diagnosis and treatment with intramuscular meglumine antimoniate are crucial for managing this parasitic infection effectively.