Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates persistent opacity in the right infrahilar region silhouetting the right hilus and right heart border , unchanged from the prior study . This is better assessed on CT of the torso performed after the study , and is consistent with a large right hilar mass . Streaky opacities at the right lung base appears slightly improved on this study , and again may represent atelectasis . There is mild pulmonary vascular congestion and interstitial edema . Mediastinal contours remain prominent . The cardiac silhouette is incompletely evaluated . No pneumothorax or pleural effusion . Left internal jugular central venous line ends at the confluence of the left brachiocephalic vein and SVC . Endotracheal tube ends 4 .3 cm from the carina .
    OUTPUT:
    
1 . Left internal jugular central venous line ends at the confluence of the left brachiocephalic vein and SVC . 2 . Stable right infrahilar opacity consistent with infiltrative mass . 3 . Mild pulmonary interstitial edema .