Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the chest radiograph obtained 1 day prior , there has been interval placement of a left pleural drainage catheter . The left pleural effusion appears minimally decreased in size with decreased , adjacent compressive atelectasis . There is probably a small right pleural effusion . The lungs are otherwise expanded and clear without focal consolidation . No pneumothorax . The cardiomediastinal silhouette appears normal .
    OUTPUT:
    
Moderate left pleural effusion decreased in size with associated compressive atelectasis . No pneumothorax .