Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been interval increase in size of a small to moderate left pleural effusion compared to the previous radiograph . Small right pleural effusion persists . Bibasilar airspace opacities likely reflect areas of atelectasis though infection can not be excluded . Known nodular opacities throughout both lungs , more pronounced at the lung bases , compatible with metastatic disease are re - demonstrated . No pneumothorax is present . Heart size is difficult to assess given the presence of the left pleural effusion . Mediastinal and hilar contours are unchanged . There are mild degenerative changes in the thoracic spine . Left axillary clips are noted .
    OUTPUT:
    
1 . Increased size of small to moderate sized left pleural effusion . Small right pleural effusion is relatively unchanged . 2 . Bibasilar airspace opacities , likely atelectasis , but infection can not be completely excluded . 3 . Diffuse pulmonary nodules compatible metastatic disease are re - demonstrated .