Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval increase in left pleural effusion with increased retrocardiac opacity . Improved vascular congestion bilaterally . Cardiac size appears enlarged but is unchanged compared to ___ . No pneumothorax .
    OUTPUT:
    
Interval increase in left pleural effusion with associated increased left base atelectasis . Improved vascular congestion bilaterally .