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Anisakiasis
Medical Questions » Anisakiasis
| Name: Anisakiasis |
| Also known as: |
| Infestation of the stomach by the nematode worm Anisakid. |
Causes of Anisakiasis
Normally infests the gut of whales, seals and dolphins. Eggs are passed out in the faces of these animals, swallowed by small shellfish, which in turn are eaten by squid, mackerel, herring, salmon, tuna and other fish. Enter the human stomach by eating raw fish. |
Symptoms of Anisakiasis
Nausea, vomiting, and severe upper abdominal pain occurs within hours of eating infested fish. Diarrhea occurs later. Pain spreads to lower abdomen, becomes intermittent, and may last for years (chronic stage). |
Tests for Anisakiasis
No specific diagnostic test. Diagnosis difficult and often delayed until part of the bowel is removed surgically or gastroscopy detects a worm. |
Treatment for Anisakiasis
Surgical excision of worms from the stomach and intestine.
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Complications of Anisakiasis of its treatment
Severe allergy reactions may occur in the acute stage. Bowel obstruction in the chronic stage. |
Likely Outcome of Anisakiasis
Cure difficult. Symptoms usually prolonged. Rarely life threatening. |
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