Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval worsening of a moderate left - sided pneumothorax with slightly increased deviation of the trachea to the right . Mild left basilar atelectasis is persistent , with new small left pleural effusion . The hilar and mediastinal contours are normal . The heart size is normal . There is no pleural effusion .
    OUTPUT:
    
1 . Interval increase in the moderate left - sided pneumothorax compared to the prior exam with slightly increased deviation of trachea to the right . 2 . New small left pleural effusion These findings were discussed with Dr . ___ by Dr . ___ by phone at ___ :___ a .m . on the day of the exam .