Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is mildly unfolded . The mediastinal and hilar contours are stable . There is hyperinflation of lungs with emphysematous changes noted in the lung apices . Pulmonary vascularity is not engorged . No definite pleural effusion , focal consolidation , or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Emphysema . No radiographic evidence for pneumonia .