Related Experiment Video
Updated: Jan 10, 2026
12:05
Mass Isolation and In Vitro Cultivation of Intramolluscan Stages of the Human Blood Fluke Schistosoma Mansoni
Published on: January 14, 2018
9.7K
Summary
Schistosomiasis skin symptoms vary by stage. The invasive stage causes itching and rashes, while the oviposition stage presents specific granulomas, including genital and ectopic lesions.
Area of Science:
- Dermatology
- Infectious Diseases
- Parasitology
Background:
- Schistosomiasis, a parasitic disease, presents diverse cutaneous manifestations.
- These skin issues arise during either the invasive or oviposition stages of infection.
- Both human and nonhuman schistosome species can cause these symptoms.
Purpose of the Study:
- To describe the clinical and histopathologic features of cutaneous schistosomiasis.
- To differentiate between invasive and oviposition stage skin manifestations.
- To explore the mechanisms behind ectopic granuloma formation in schistosomiasis.
Main Methods:
- Clinical case review and histopathological analysis of skin lesions.
- Description of symptoms during the invasive and oviposition stages.
- Discussion of potential mechanisms for ectopic lesion localization.
Main Results:
- Invasive stage: non-specific symptoms like severe itching and generalized reactions (urticarial, erythema multiforme-like).
- Oviposition stage: specific granulomas, including genital/perigenital and extragenital cutaneous lesions.
- Ectopic granulomas were observed in areas distant from portocaval anastomoses.
Conclusions:
- Cutaneous schistosomiasis presents distinct clinical and histopathological patterns based on the disease stage.
- Genital and extragenital granulomas characterize the oviposition stage.
- Understanding the pathogenesis of ectopic lesions is crucial for comprehensive diagnosis and management.
