Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate a stable right apical pneumothorax . The lateral hydropneumothorax while still present , has improved compared to CXR from earlier in the morning . Extensive subcutaneous emphysema also appears mildly improved . There is a small right pleural effusion . An opacity at the right lower lung is worse , and likely represents atelectasis . There is no change to the left lung parenchyma . Multiple rib fractures are again noted .
    OUTPUT:
    
1 . Persistent right apical pneumothorax with improvement of right lateral basilar hydropneumothorax . 2 . Increased right lower lobe opacification , which likely represents worsening atelectasis .