Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior radiograph there is a right sided pleural catheter which projects over the right lower lung . Lung volumes are lower than on the prior study , and there is slight improvement in the right pleural effusion . There is considerable bibasilar atelectasis . No pneumothorax .
    OUTPUT:
    
Right pleural catheter in satisfactory position . No pneumothorax . Slight improvement in right pleural effusion .