Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Subtle patchy right base opacity may be due to chronic changes however , consolidation due to infection or aspiration not excluded . Cyst is not bronchiectasis is again seen in the left suprahilar region . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . No pulmonary edema .
    OUTPUT:
    
Chronic obstructive pulmonary disease . Patchy right lower lobe opacity is nonspecific , but could be due to pneumonia or aspiration .