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Eur Ann Allergy Clin Immunol. 2013 Nov 1;45(6):209-11.

Unusual shift from IgE-mediated milk allergy to food protein-induced enterocolitis syndrome.

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  • 1Pediatric Department, University of Verona Hospital, Verona, Italy.


Food protein-induced enterocolitis syndrome (FPIES) is a potentially severe non-IgE-mediated food allergy usually caused by cow's milk or soy, and more rarely by solid foods such as rice, oats, barley, chicken, turkey, egg white, green peas and peanuts. In children with FPIES, the presence of specific IgE antibodies to the causative food, either at presentation or during follow-up, defines an "atypical form" of FPIES characterized by a lesser probability of developing tolerance and a potential progression to typical IgE-mediated hypersensitivity. Although it is uncommon, the shift from non-IgE-mediated milk-protein induced enterocolitis syndrome to IgE-mediated milk allergy has recently been described. We report the first case, to our knowledge, of a shift from IgE-mediated cow's milk allergy to pure non-IgE-mediated FPIES, in a 4-month-old male infant.

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