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Lymphatic filariasis: A view at pathological diversity
Prashant Basavaraj Mahalingashetti1, Ramaswamy Anikode Subramanian1, Sushan Shweta Jayker1
1Department of Pathology, P E S Institute of Medical Sciences and Research, Kuppam, Andhra Pradesh, India.
Tropical Parasitology
|September 25, 2014
Summary
Filariasis diagnosis can be challenging as it mimics common diseases. Histological examination reveals diverse immune responses and the role of Wolbachia bacteria in tissue damage.
Area of Science:
- Parasitology
- Immunology
- Pathology
Background:
- Filariasis diagnosis traditionally relies on peripheral blood smear microscopy for microfilariae.
- Lymphatic filariasis clinical presentation can resemble prevalent local diseases, complicating diagnosis.
- Histological examination offers an alternative diagnostic approach for parasitic infections.
Observation:
- Three cases of filariasis diagnosed via histological sections were analyzed.
- The cases exhibited varied patterns of host immune response to the parasite.
- Both viable and dead microfilariae were observed within the same tissue foci.
Findings:
- The presence of both live and dead parasites suggests an active immune response leading to parasite death.
- Histological features included endothelial injury and granulomatous inflammation.
- These findings indicate the significant role of Wolbachia bacteria in modulating the host's tissue response.
Implications:
- Histopathology is a valuable tool for diagnosing filariasis, especially when microfilariae are not detected in peripheral smears.
- Understanding the immune response and the role of Wolbachia in filariasis pathogenesis can inform treatment strategies.
- This study highlights the complex interplay between the parasite, host immunity, and endosymbiotic bacteria in filarial infections.
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