Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated with flattening of the diaphragms . Heart size remains mildly enlarged , unchanged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . There is minimal atelectasis in the lung bases . No focal consolidation , pleural effusion or pneumothorax is present . Mild degenerative changes are noted in the thoracic spine . No free air is seen under the diaphragms .
    OUTPUT:
    
Hyperinflated lungs suggestive of COPD . Mild bibasilar atelectasis . No subdiaphragmatic free air .