Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . When compared to prior , there has been interval enlargement of the right - sided pneumothorax , particularly at its inferior aspect . There is subsequent atelectasis of the middle and lower lobe . There is stable mild leftward shift of the mediastinum . Trace right - sided effusion is also identified . Left lung is grossly clear . Cardiomediastinal silhouette is stable . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Interval enlargement of the right - sided pneumothorax with middle and lower lobe atelectasis . Findings were discussed with Dr . ___ ___ the phone at 8 :40 p .m . ( also the time of discovery ) on ___ by Dr . ___ .