Ten cases of necrotizing enterocolitis have been reviewed. The diagnosis was based on clinical courses, operative findings or post-mortem examinations. Three of 6 premature cases survived. In these 3 patients, the lesion was localized in the ileal end and an operation was indicated for pneumoperitoneum. As symptoms and signs were less characteristic in premature than in matured patients before operation, the diagnosis of localized necrotizing enterocolitis was difficult. Closed observation in high risk neonates is, therefore, very important.
