Congenital diaphragmatic hernia

A 2-hour-old male neonate develops difficulty breathing while in the nursery. He was born at 36-weeks gestational age via a vaginal delivery. Prenatal development was complicated by maternal gestational diabetes. The patient’s vitals are notable for tachypnea. Physical exam reveals nasal flaring and intercostal retractions. The apical impulse is displaced to the right. Imaging is ordered, and the results are as follows:
 
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Which of the following best describes the cause of this patient’s respiratory presentation?