Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The aorta is calcified . Heart appears mildly enlarged . The chest is hyperinflated . Postsurgical changes are noted along the lower right hemithorax . Bronchovascular irregularity suggests emphysema . Patchy retrocardiac opacity suggests opacification in the left lower lobe with mild associated volume loss . Mild loss in height of T12 is noted .
    OUTPUT:
    
Findings suggesting emphysema . Patchy opacity at the left lung base , probably atelectasis but not specific .