Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate left and small right - sided pleural effusion . Improved aeration of the lung bases with decreasing bibasilar atelectasis . Pulmonary vascular congestion has also improved . Moderate cardiomegaly persists . Prior median sternotomy CABG and right - sided PICC in the mid SVC . No pneumothorax .
    OUTPUT:
    
Moderate left and small right pleural effusion . No pneumothorax . Pulmonary vascular congestion has improved .