Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate clear lungs . The left hilar lymphadenopathy appears to have subtly increased in bulk when compared to the ___ study . Enlarged lymph nodes can also be seen in the aorticopulmonary window . The heart size is normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Subtle increase in left hilar lymphadenopathy bulk .