Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is decreased pulmonary vascular congestion from the most recent prior study . There is improved aeration of the left lung base . Small bilateral pleural effusions persist . No pneumothorax is present . The cardiac silhouette is moderately enlarged but stable . The mediastinal and hilar contours are within normal limits and unchanged .
    OUTPUT:
    
1 . Improved pulmonary vascular congestion from ___ . 2 . Improved left basilar atelectasis . 3 . Unchanged small bilateral pleural effusions .