<unk> : coronal obstetric ultrasound (head to right of image, thorax centre, abdomen left) shows the stomach and heart both within the thorax. This condition can often be diagnosed before birth and fetal intervention can sometimes help, depending on the severity of the condition. Infants born with<unk><unk>  experience respiratory failure due to both pulmonary hypertension and pulmonary hypoplasia. The first condition is a restriction of blood flow through the lungs thought to be caused by defects in the lung. Pulmonary hypoplasia or decreased lung volume is directly related to the abdominal organs presence in the chest cavity which causes the lungs to be severely undersized, especially on the side of the<unk> . Survival rates for infants with this condition vary, but have generally been increasing through advances in neonatal medicine. Work has been done to correlate survival rates to ultrasound measurements of the lung volume as compared to the baby's head circumference. This figure known as the lung-to-head ratio (LHR). Still, LHR remains an inconsistent measure of survival. Outcomes of<unk>  are largely dependent on the severity of the defect and the appropriate timing of treatment. A small percentage of cases go unrecognized into adulthood.
Congenital diaphragmatic hernia
Tracheal agenesis
Pulmonary atresia
Pulmonary agenesis
Asphyxiating thoracic dysplasia
Pulmonary artery sling
Pulmonary hypoplasia
First arch syndrome