Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are overinflated , as seen on the prior study from ___ . There is minimal bilateral lower lung atelectasis / scarring . The lungs are otherwise clear . Mild cardiomegaly is not significantly changed . The mediastinal contours are unchanged . Blunting of the right costophrenic angle could represent a small pleural effusion , unchanged . There is no left pleural effusion . No pneumothorax is seen .
    OUTPUT:
    
1 . Overinflated lungs with subsegmental bilateral lower lung atelectasis / scarring . 2 . Unchanged mild cardiomegaly . 3 . Possible small right pleural effusion , unchanged .