Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mildly hyperinflated lungs with flattening of the diaphragms . Lungs are clear . No pleural effusion , pneumomediastinum , or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the upper abdomen is unremarkable .
    OUTPUT:
    
Hyperinflated lungs can be seen with emphysema and small airways disease . No pneumonia .