Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is markedly enlarged but stable in size . Upper zone vascular redistribution is accompanied by minimal interstitial edema , the latter improved since ___ . Bilateral pleural effusions are small in size , with slight decrease on the left since the recent study . Focal linear scar or atelectasis in left retrocardiac region is unchanged .
    OUTPUT:
    
Cardiomegaly and improving CHF , with mild residual interstitial edema and small bilateral pleural effusions .