Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is atelectasis in the right middle lobe in this patient with known right hilar mass . Elsewhere lungs are clear . Heart size is normal . No large effusion or pneumothorax . Bony structures are intact .
    OUTPUT:
    
Right middle lobe atelectasis , right hilar mass poorly visualized .