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Systemic anaphylaxis due to hepatic hydatid disease
T Boyano1, F Moldenhauer, J Mira
1Allergy Unit, Hospital Virgen de la Luz, Cuenca, Spain.
Summary
Hydatidosis, a parasitic infection, can cause sudden anaphylaxis. This study shows that liver hydatid disease can lead to spontaneous anaphylaxis, likely through an IgE-mediated pathway, resolving after cyst removal.
Area of Science:
- Immunology
- Parasitology
- Clinical Medicine
Background:
- Anaphylaxis is a severe allergic reaction.
- Hydatidosis, caused by Echinococcus tapeworms, is endemic in many regions.
- Rupture of hydatid cysts during surgery is a known trigger for anaphylaxis.
Observation:
- Three patients presented with spontaneous anaphylaxis without an identifiable cause.
- Diagnostic workup revealed hepatic hydatid disease in all patients.
- These cases suggest a link between hydatidosis and unexplained anaphylaxis.
Findings:
- Spontaneous anaphylaxis in these patients was attributed to undiagnosed hepatic hydatid disease.
- An IgE-mediated mechanism is proposed as the likely cause of anaphylaxis.
- Surgical resection of hydatid cysts led to the complete resolution of anaphylactic episodes.
Implications:
- Hydatidosis should be considered in the differential diagnosis of apparently spontaneous anaphylaxis, especially in endemic areas.
- Early diagnosis and treatment of hydatid disease can prevent life-threatening anaphylactic reactions.
- This highlights the importance of considering parasitic infections in allergic presentations.