Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperexpanded , as before . Heart size is normal . Aorta is calcified , indicating atherosclerosis . The aorta is tortuous . The mediastinal and hilar contours are unchanged . The pulmonary vasculature is normal . There is consolidation in the right lower lung , which has decreased compared ___ . Lungs are otherwise clear . Again seen is blunting of the bilateral costophrenic angles , which may represent small pleural effusions or pleural thickening . No pneumothorax is seen . There are no acute osseous abnormalities . There are multilevel degenerative changes of the visualized spine .
    OUTPUT:
    
Compared to ___ , interval decrease in size of a right lower lung consolidation . Persistent pneumonia is difficult to exclude .