Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new large right pneumothorax which was not present on the prior examination . There is no mediastinal shift or flattening of the ipsilateral hemidiaphragm to suggest tension . The right lower lobe opacity present on the prior study is now more apparent likely due to compressive atelectasis from the pneumothorax . Left lung is clear . The hilar and cardiomediastinal contours are normal . There is no pleural effusion . The endotracheal tube and nasogastric tube are in appropriate and unchanged position .
    OUTPUT:
    
1 . New large right pneumothorax with no evidence of tension . 2 . Pneumonia or atelectasis at the right lung base . Findings were communicated to Dr . ___ by Dr . ___ ___ telephone on ___ at 10 :57 a .m .