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Pulmonary echinococcosis
1Dept of Medicine, Division of Pulmonology, Johannesburg Hospital and University of the Witwatersrand, Johannesburg, South Africa.
The European Respiratory Journal
|June 12, 2003
Summary
Echinococcosis, a parasitic disease caused by Echinococcus tapeworm larvae, primarily affects the liver and lungs. While often asymptomatic, complications arise from cyst rupture or compression, with surgical removal being the preferred treatment.
Area of Science:
- Parasitology
- Infectious Diseases
- Public Health
Background:
- Echinococcosis, or hydatid disease, is caused by Echinococcus tapeworm larvae.
- Four species exist: E. granulosus (cystic echinococcosis), E. multilocularis (alveolar echinococcosis), and the rarer E. vogeli and E. oligarthrus (polycystic echinococcosis).
- Humans are accidental hosts, typically infected via contact with infected dogs, with liver and lungs being the most common sites of infestation.
Purpose of the Study:
- To provide an overview of echinococcosis, covering its causative agents, transmission, clinical manifestations, and management.
- To highlight the epidemiological distribution and organ tropism of different Echinococcus species.
Main Methods:
- Review of existing literature on Echinococcus species and echinococcosis.
- Description of human infection routes and host-parasite interactions.
- Summary of diagnostic imaging findings and serological detection limitations.
Main Results:
- Echinococcus granulosus is the most common cause of human echinococcosis globally.
- Pulmonary echinococcosis is more prevalent in younger individuals.
- Cysts appear as well-defined masses on imaging; antibody detection is positive in only about half of pulmonary cases.
Conclusions:
- Echinococcosis presents a significant public health challenge, particularly cystic echinococcosis.
- Early diagnosis and prompt surgical intervention are crucial for favorable outcomes.
- Further research into improved diagnostic tools and treatment strategies is warranted.