Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Small - to - moderate hiatal hernia is present , with otherwise unremarkable mediastinal contours . The right hilum appears slightly larger and more dense than the left hilum , and note is made of report of right hilar lymphadenopathy on previous CTA of the chest of ___ . Lungs and pleural surfaces are clear . There are no acute skeletal findings .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Persistent right hilar prominence , likely corresponding to enlarged right hilar lymph nodes on prior chest CTA in this patient with history of lymphoma .