Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The aorta demonstrates mild calcifications . The hilar and mediastinal contours are otherwise unremarkable . There is mild fullness of the perihilar vasculature . No focal consolidations concerning for pneumonia identified . There is no large pleural effusion . There is mild bibasilar atelectasis . There is no evidence of pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Mild perihilar vascular fullness .