Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is new asymmetrical elevation of the right hemidiaphragm , which suggests a component of volume loss in the right lower lobe , likely accounting for the opacity at the right base . A small right pleural effusion is present . Left lung appears hyperinflated . Heart does not appear enlarged . No pneumothorax .
    OUTPUT:
    
1 . Right lower lobe atelectasis . 2 . No pneumonia .