One of the congenital defects which usually is manifest in the earliest hours of life is the posterolateral diaphragmatic hernia through the foramen of Bochdalek (persisttent pleuroperitoneal canal). Cyanosis and dyspnea may be present during the immediate postnatal period, and the presence of either should make one aware of the possible existence of a diaphragmatic defect with displacement of abdominal viscera into the pleural cavity. Once feedings are attempted emesis may become prominent and the other symptoms are exaggerated. Occasionally with diaphragmatic defects no symptoms are present and the lesion goes unrecognized for many months or years. In rare instances incarceration or strangulation of stomach or intestine occurs in posterolateral hernias and the patient presents an acute problem in diagnosis and management.
The present case is that of a 6-week-old boy with apparently normal postnatal development who suddenly had incarceration of his stomach through a posterolateral diaphragmatic defect with acute