Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is unremarkable . Reduced lung markings in the apices , mild flattening of the hemidiaphragms , and hyperinflation concerning for obstructive airway disease . There is no focal consolidation or pulmonary edema . Bibasilar linear atelectasis is again noted , increased at the left lung base . No pleural effusion or pneumothorax is seen . Partially rounded opacity within the posterior left lung base corresponds to a fat containing Bochdalek 's hernia , seen on prior radiographs and chest CT .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Hyperinflation of the lungs , mild flattening of the hemidiaphragms , and reduced lung markings at the apices concerning for obstructive airway disease . 3 . Chronic right basilar and increased left basilar atelectasis .