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  • Title: [Gastric anisakidosis: personal experience].
    Author: Ugenti I, De Ceglie A, Ferrarese F, Rizzo C, Manta R, Fabiano G.
    Journal: Chir Ital; 2004; 56(2):301-5. PubMed ID: 15152528.
    Abstract:
    Anisakidosis is a parasitic disease of the human gastrointestinal tract caused by ingestion of marine nematode larvae such as anisakis simplex or, rarely, Pseudoterranova, present in raw or undercooked fish. Frequent sites of involvement by anisakis are the stomach, small intestine, rarely the colon, or the peritoneum, liver, pancreas, lung and tonsils, anisakidosis is a self-limiting disease; the symptoms arise 12-24 hours after ingesting raw fish and include nausea, diarrhoea, and severe abdominal pain, but also anaphylactic reactions. At the site of penetration, anisakis causes marked oedema, eosinophilic infiltration and granuloma formation. There are haematological abnormalities such as marked leukocytosis of the peripheral blood, eosinophilia, and positive PCR and serum antibodies to the larva's surface antigens. The diagnosis of anisakidosis can be made by endoscopy, radiology and US, but the disease is often diagnosed at surgical intervention. In the gastric form of anisakidosis, EGIDS has both a diagnostic role and a therapeutic one because it is possible to remove the worm using biopsy forceps. We report on one case of gastric anisakidosis, in a women, hospitalised for intense epigastric pain and vomiting after ingesting raw fish. She underwent gastroscopy. A worm was extracted from the gastric mucosa using biopsy forceps. This was followed by clinical improvement. The worm was identified by its macroscopic and microscopic characteristics as an anisakis larva. At laboratory examination, marked leukocytosis and eosinophilia of the patient's peripheral blood were observed 3-4 days after ingestion of anisakis.
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