Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior study , there has been interval removal of the right internal jugular central venous line . Cardiomediastinal contour has also improved , although remains moderately enlarged . Lung volumes are slightly reduced and retrocardiac opacification may represent atelectasis , however infection is not excluded . Small left pleural effusion is likely . Peribronchial cuffing is noted in the right hilar region , which is the only residual sign of fluid overload from the prior study from late ___ , as the interstitial edema has improved .
    OUTPUT:
    
1 . Interval improvement in cardiac size and interstitial edema since ___ . 2 . Slight decrease in lung volumes and increase in retrocardiac opacity , which likely represents atelectasis , however infection is not excluded .