[Unusual case of food protein-induced enterocolitis syndrome].

Food protein-induced enterocolitis syndrome is a nonimmunoglobulin E mediated gastrointestinal food hypersensitivity that manifests as profuse, repetitive vomiting, pallor and hypotonia, often with diarrhea leading to severe dehydration and lethargy (sepsis-like symptoms) in the acute setting. An oral food challenge is sometimes performed to confirm the diagnosis and treatment consists of elimination of the food trigger(s) from the diet. We report a case of a 3-monthsold infant with several episodes of food protein-induced enterocolitis syndrome after taking infant formula milk with tolerance of another trademark. Differences in the composition of its ingredients could be the cause of the sensitization.