Meconium ileus equivalent in an infant, aggravated by soy bean formula.

Meconium ileus in the neonate is the presenting symptom in 10 to 
20 per cent of instances of cystic fibrosis of the pancreas. 
Similar intestinal obstruction occurring later, in the post-neonatal period, is a 
rare occurrence, and was called "Meconium Ileus Equivalent" by Jensen. Of 
40 cases affected by this syndrome reported in medical literature, only 
13 were infants. We report a 7-week-old patient who died 3 
days after surgery for small bowel obstruction. The clinical suspicion of 
cystic fibrosis was confirmed at autopsy. 