Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . The lungs are clear without evidence of focal consolidations , concerning for pneumonia . There is mild bibasilar atelectasis . Note is made of an old healed left clavicular fracture . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Mild bibasilar atelectasis . No focal consolidations concerning for pneumonia identified .