Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated with flattening of the diaphragms suggestive of COPD . Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Linear opacities in the lung bases reflect subsegmental atelectasis or scarring . No focal consolidation , pleural effusion or pneumothorax is seen . Scarring is noted within the lung apices . Remote right - sided rib fractures are again demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality .