Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Elevated right hemidiaphragm again noted . There is persistent right hilar and perihilar atelectasis . Left lung is clear . No convincing evidence for pneumonia . Cardiomediastinal silhouette is normal . No pneumothorax . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Persistent atelectasis in the right hilar / perihilar region .