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Anisakiasis Causing Acute Dysentery in Malaysia
Amirah Amir1, Romano Ngui1, Wan Hafiz Wan Ismail1
1Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
The American Journal of Tropical Medicine and Hygiene
|June 22, 2016
Summary
Human anisakiasis, a parasitic infection from seafood, caused acute dysentery in a Malaysian man. The diagnosis was confirmed by colonoscopy and molecular analysis of the Anisakis simplex larva.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Parasitology
Background:
- Human anisakiasis is a foodborne zoonotic disease.
- It is acquired through the consumption of raw or undercooked seafood contaminated with Anisakis larvae.
- Anisakiasis can manifest with various gastrointestinal symptoms.
Observation:
- A case of acute dysentery in a 64-year-old man in Malaysia was reported.
- Colonoscopy revealed a nematode larva penetrating the ascending colon mucosa.
- Bleeding was noted at the site of larval penetration.
Findings:
- Microscopic examination showed Y-shaped lateral epidermal cords, characteristic of Anisakis larvae.
- Polymerase chain reaction (PCR) analysis of the cytochrome oxidase 2 (cox2) gene confirmed the larva as Anisakis simplex.
- The findings indicate a direct cause of acute dysentery by Anisakis simplex.
Implications:
- This case highlights the importance of recognizing Anisakiasis as a cause of acute dysentery.
- Public health awareness regarding safe seafood consumption practices is crucial.
- Accurate diagnosis through endoscopy and molecular methods is vital for effective management.
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