Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior exam , the loculated right pleural effusion has decreased in size . A small amount of pleural fluid persists . There is no left pleural effusion . Bibasilar atelectatic changes are stable . There is no new opacity , pulmonary edema , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Decrease in size of the loculated right pleural effusion . No pneumothorax .