Morphological and molecular diagnosis of anisakid nematode larvae from cutlassfish (Trichiurus lepturus) off the coast of Rio de Janeiro, Brazil.
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Colonic intussusception caused by anisakiasis: a case report and review of the literature.
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A 67-year-old woman presented with periumbilical pain. Contrast-enhanced computed tomography findings indicated intussusception of the ascending colon without ischemia or necrosis, and we performed successful colonoscopy to treat the condition. Furthermore, an edematous area caused by anisakis was detected in the ascending colon and the anisakis was removed. The patient noted that she had eaten raw fish one day before the symptoms developed. Although colonic intussusception caused by anisakiasis is extremely rare, colonoscopy should be performed in colonic intussusception patients suspected of having anisakiasis in order to avoid invasive resection. (+info)
Should the host reaction to anisakiasis influence the treatment? Different clinical presentations in two cases.
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Gastrointestinal anisakiasis is a parasitic infection occurring in people that consume raw or inadequately cooked fish or squid. It is frequently characterized by severe epigastric pain, nausea and vomiting caused by the penetration of the larvae into the gastric wall. Acute gastric anisakiasis with severe chest discomfort is rarely reported in Italy. On the other hand, gastro-allergic anisakiasis with rash, urticaria and isolated angioedema or anaphylaxis is a clinical entity that has been described only recently. Also, if patients usually develop symptoms within 12 hours after raw seafood ingestion, not always endoscopic exploration can promptly identify the Anisakis larvae. Moreover, some authors consider the prevailing allergic reaction as a natural and effective defense against the parasitic attack. We report two cases of peculiar manifestations of anisakiasis in both acute and chronic forms (severe chest discomfort and anaphylactoid reaction). (+info)
Different fish-eating habits and cytokine production in chronic urticaria with and without sensitization against the fish-parasite Anisakis simplex.
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