Introduction Congenital failure of the pleuroperitoneal membrane to develop abdominal contents herniate into the pleural cavity contents can compress lungs buds preventing proper development causing pulmonary hypoplasia commonly presents on left posterolateral side Presentation Symptoms dyspnea Physical exam bowel sounds in chest cyanosis barrel-shaped chest scaphoid abdomen (due to herniation of abdominal contents into thorax Management endotracheal intubation nasogastric tube for decompression chest radiograph to confirm diagnosis surgical correction