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Canadian Journal of Gastroenterology and Hepatology
Volume 2016, Article ID 5176502, 7 pages
http://dx.doi.org/10.1155/2016/5176502
Review Article

Common Symptoms from an Uncommon Infection: Gastrointestinal Anisakiasis

Division of Gastroenterology, St. Michael’s Hospital, University of Toronto, 30 Bond Street, Toronto, ON, Canada M5B 1W8

Received 2 April 2016; Accepted 22 September 2016

Academic Editor: Jennifer Jones

Copyright © 2016 Yuto Shimamura et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Clinicians can be forgiven for thinking of anisakiasis as a rare condition low in the differential diagnosis of abdominal pain. Gastrointestinal anisakiasis is a zoonotic parasitic disease caused by consumption of raw or undercooked seafood infected with nematodes of the genus Anisakis. Even though the reported cases indicate that this is a rare disease, the true incidence of the disease could be potentially higher than what is reported in the literature as cases can go undiagnosed. Diagnosis and treatment of gastric anisakiasis are made by a compatible dietary history, direct visualization, and removal of the larvae via gastroscopy. Serologic testing and imaging studies are useful in the diagnosis of intestinal anisakiasis and conservative management should be considered. This disease may mimic other diseases and lead to unnecessary surgery. This emphasizes the importance of suspecting gastrointestinal anisakiasis by history taking and by other diagnostic modalities.