Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased opacity in the right mid lung likely localizes to the right upper lobe on lateral view . Mild cardiomegaly is stable . The lungs are hyperexpanded , unchanged . Chronic diffuse interstitial lung changes may be related to age and are similar to prior examination . Mediastinal contour , hilar , and cardiac borders are stable . No pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Increased opacity in right upper lobe concerning for early pneumonia . 2 . Stable mild cardiomegaly and chronic interstitial changes .