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Bronchial atresia is a congenital disorder that is due to the abnormal development of a bronchus, where there is focal obliteration of the airway and hyperinflation of the distal lung. It most commonly involves the left upper lobe, as in this case, followed by the right upper and middle lobes. Patients are usually asymptomatic, and the abnormality is incidentally discovered on chest imaging performed for some other reason. Less commonly, patients may complain of mild respiratory symptoms such as chronic cough or recurrent infections. |
