Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are diffuse interstitial opacities that are unchanged or slightly improved from ___ , worse in the left base . There is no pleural effusion or pneumothorax . The heart is normal in size .
    OUTPUT:
    
Diffuse interstitial opacities , worse in left lower lobe with no change to minimal improvement from ___ . These findings are most compatible with an atypical pneumonia in the setting of emphysema .