Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are hyperinflated with flattening of the diaphragms consistent with COPD / emphysema , as also seen on the prior study . No evidence of focal consolidation , pleural effusion , or pneumothorax is seen . The cardiac , mediastinal , and hilar contours are stable . The aortic calcification is again seen . No overt pulmonary edema is seen .
    OUTPUT:
    
Pulmonary emphysema / COPD without acute interval change .