Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . The cardiac silhouette is normal in size . Mediastinal contours are enlarged compared to the prior study as well as a prominent azygoesophageal line . The right paratracheal line is also fuller . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Prominent hilar contours and findings concerning for central lymphadenopathy . A chest CT is recommended for further evaluation .