John RaffenspergerFort Meyers, Florida, United States Harald Hirschprung, a Danish pediatrician, in 1888 described the clinical course and pathology of two infants who died with congenital hypertrophic pyloric stenosis.1 Gastroenterostomy was adopted for the treatment of infants with pyloric stenosis, but surgical treatments were hampered by delayed diagnosis, malnutrition, and a lack of knowledge about…