Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , causing apparent worsening of the bibasilar atelectasis . The nasogastric tube and mediastinal chest tube have been removed . The lucent contour surrounding the right mediastinal contour is no longer present and no evidence of pneumothorax is seen . There is bibasilar atelectasis and fluid in the right minor fissure . There is post-operative cardiomediastinal widening similar to prior post-operative radiographs . Small bilateral pleural effusions are unchanged . More prominent peribronchial cuffing suggests mild interstitial pulmonary edema . Lungs are otherwise clear . The right IJ Swan - Ganz catheter has been removed but the introducer sheath remains in place . The remainder of the indwelling support and monitoring devices remain in standard position .
    OUTPUT:
    
1 . Small right pneumothorax no longer visualized after removal of mediastinal chest tube . 2 . Lower lung volumes with unchanged bilateral small pleural effusions and basilar atelectasis left worse than right . 3 . Minimal worsening of mild interstitial pulmonary edema .