Colonic stricture complicating formula protein intolerance enterocolitis.

Cases of formula protein intolerance (FPI), in which many of the features of neonatal necrotizing enterocolitis (NEC) have been exhibited (vomiting, diarrhea, hematochezia, abdominal distention, and pneumatosis intestinalis), have been reported (1-6). This case of combined cow's milk and soy protein intolerance illustrates further the difficulty in distinguishing clinically between NEC and FPI. Moreover, it demonstrates that intestinal stricture is a potential long-term complication of FPI, as it is also of NEC, and suggests that significant morbidity may result when the diagnosis of FPI is not considered as a cause of the NEC syndrome.