| Summary points: | An 8-year-old with history of paroxysmal wheezing dyspnea and dry cough presents for evaluation of a left-sided opaque hemithorax. This case describes the radiographic findings and provides images. The authors discuss literature reports of congenital lung anomalies with asthma, the association of congenital malformations in patients with congenital lung anomalies and their effects on morbidity and mortality, and diagnostic modalities. |