Unilateral hyperlucent lung

Hyperinflation surrounding a solitary nodule

“…The differential diagnosis of bronchial atresia includes other congenital diseases that can result in areas of decreased lung parenchymal density, such as cystic adenomatoid malformations, pulmonary sequestration, congenital lung cysts, and congenital lobar emphysema 2 . In the first three, well-defined walls usually separate the hypodense area from the surrounding normal parenchyma.…”