Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral hyperinflated lungs suggest emphysema . No discrete lung opacities concerning for pneumonia . Biapical and minimal scarring at the left lung base is unchanged . There is no evidence of central or hilar lymphadenopathy . Heart size is normal . Biapical scarring is minimal .
    OUTPUT:
    
Bilateral hyperexpanded lungs suggestsf COPD . No discrete lung opacities worrisome for pneumonia .