Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are persistent bilateral pleural effusions , decreased somewhat in size compared to the prior study . Persistent bibasilar atelectasis . Reticular opacities throughout the lungs likely reflect interstitial edema with alveolar edema evident at the lung bases . No pneumothorax seen . The visualized bony structures demonstrate increased sclerosis consistent with metastatic disease . No free air under the diaphragm .
    OUTPUT:
    
No pneumothorax seen .