Cow's Milk Allergy in Preterm Infant with Bronchopulmonary Dysplasia.

Cow's milk allergy is frequent in the first year of life. The symptoms may start during the first weeks of life, and may be cutaneous (50-60%), gastrointestinal (50-60%) or respiratory (20-30%), often involving more than one organ system. In this report, we describe a case of cow's milk allergy in a preterm infant in whom rectal bleeding and respiratory symptoms resolved with the introduction of an extensively hydrolyzed formula. Occurrence of the respiratory symptoms of this disorder in a preterm infant with bronchopulmonary dysplasia may cause re-hospitalization after discharge.