Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: This compared to the previous radiograph , the a large left effusion with subsequent atelectasis is unchanged . On the right , the area of pleural thickening along the chest wall has substantially decreased . The monitoring and support devices are unchanged . No new parenchymal opacities . Unchanged appearance of the cardiac silhouette .
    OUTPUT:
    
Decrease in extent a region of pleural thickening , likely a combination of pleural thickening and pleural fluid .