Definition of the main congenital and acquired surgical diseases, typical
of the pediatric age, with particular interest to congenital malformations inducing to neonatal surgical emergencies, and to the most common causes of hospitalization - in election and in urgency - in a center of Pediatric Surgery. Finally, a complete characterization of the main gastrointestinal malformations and/or neurological impairment as potential causes of deglutitory and nutritional difficulties.