Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . There is no focal consolidation . The cardiac silhouette is normal . There is mild bulging of the right mediastinal contour for , likely secondary to the ascending aorta . There is no pleural effusion or pneumothorax . Mild degenerative changes of the thoracic spine .
    OUTPUT:
    
No evidence of pneumonia . Lung hyperinflation .