Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . Again seen are coarse interstitial markings , with a superimposed mild interstitial edema , minimally improved in the upper zones in comparison to ___ . No new consolidation , pneumothorax , or large pleural effusion is seen .
    OUTPUT:
    
Mild interstitial edema superimposed upon chronic interstitial disease . No focal consolidation detected .