Chronic anisakidosis presenting with intestinal intussusception

A.C. Piscaglia, M.T. Ventura, G. Landolfo, M. Giordano, S. Russo, R. Landi, V. Zulian, F. Forte, M.L. Stefanelli

Gastroenterology and Endoscopy Unit, State Hospital, Republic of San Marino. annachiarapiscaglia@hotmail.com

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• Gastroenterology

OBJECTIVE: Anisakidosis is a parasitic infection caused by the ingestion of row or uncooked fish, containing larval nematodes from the Anisakidae family. Intestinal anisakidosis represents about 4% of all cases, the majority being localized in the small bowel, with rare colonic involvement. Here we present an infrequent case of chronic anisakidosis, presenting with intestinal intussusception.

CASE REPORT: A 52 years old woman, chronically treated with immunosuppressants, presented to our Institution with acute abdominal pain and vomiting, due to colocolic intussusception. Colonoscopy successfully reduced the intussusception and revealed the presence of a voluminous colonic submucosal mass, near the hepatic flexure. Therefore, the patient underwent laparoscopic right hemicolectomy. The diagnosis of anisakidosis was made when the histological examination of the surgical specimen revealed the infestation of the intestinal wall by a nematode of the Anisakidae family, with an intense erosive-inflammatory adjacent reaction.

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