Intussusception secondary to anaphylactic reaction to salmon roe (ikura)

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Anaphylactic food reaction often involves gastrointestinal symptoms, such as vomiting and abdominal pain, but to date, there have been no publications documenting the association between food hypersensitivity and intussusception. Herein is reported the case of a 2-year-old boy with intussusception accompanied by anaphylactic food reaction. The patient without known allergies complained of severe abdominal pain following ingestion of salmon roe for the first time. Dyspnea, wheezing and generalized urticaria also developed. Subsequently, he had stools containing jelly-like blood with mucus. At hospital arrival, physical examination identified an abdominal mass in the right lower quadrant; imaging confirmed the diagnosis of colo-colic intussusception. This patient was successfully treated with enema and no pathological findings were identified via radiology. Laboratory results supported the presence of IgE-mediated allergy to salmon roe in the present patient. To our knowledge, this is the first report to describe the possible association between intussusception and a hypersensitive food reaction.

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