Late presenting congenital diaphragmatic hernia.

Delayed herniation of the abdominal contents through a congenital diaphragmatic hernia may occur beyond the neonatal period. The case is reported of a 9 month old child presenting with acute respiratory distress secondary to tension gastrothorax. The chest radiograph showed a tension gastrothorax. Nasogastric tube placement confirmed herniation of the stomach into the left chest and is the initial treatment of choice when a tension gastrothorax is identified. The late presenting congenital diaphragmatic hernia poses considerable diagnostic challenges often leading to misdiagnosis and risk of thoracocentesis. The possibility of late presenting congenital diaphragmatic hernia should be considered in unusual cases of pneumothorax, especially in the absence of trauma so that unnecessary procedures like chest tube drainage can be avoided.