Cutaneous leishmaniasis. Clinical, histopathologic, and electron microscopic studies

Area of Science:

• Medical Parasitology
• Dermatology
• Infectious Diseases

Background:

• Cutaneous leishmaniasis is a parasitic disease transmitted by sandflies.
• Cases in non-endemic regions often indicate travel history to endemic areas.

Observation:

• Two Chinese nationals presented with skin ulcers after insect bites in Abha, Saudi Arabia.
• The patients developed symptoms following their stay in the region.

Findings:

• Diagnosis of cutaneous leishmaniasis was confirmed through clinical and dermatopathological examinations.
• Successful isolation and culture of Leishmania tropica from patient skin ulcers were achieved using specific media.
• Electron microscopy provided detailed morphology of Leishmania tropica in both amastigote (tissue) and promastigote (cultured) forms.

Implications:

• This case highlights the potential for leishmaniasis transmission in previously unrecognized areas.
• Early diagnosis and identification of Leishmania species are crucial for effective treatment and public health.
• Understanding parasite morphology aids in accurate identification and classification of Leishmaniasis cases.