Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral lungs are hyperexpanded with flattening of both hemidiaphragms and increase in the anteroposterior dimension of the chest , compatible with COPD changes . No focal abnormality concerning for pneumonia . Heart size and hilar contours are normal . Aorta is generally large , but without focal aneurysm .
    OUTPUT:
    
1 . COPD . 2 . No Pneumonia .