Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low with secondary widening of the cardiac silhouette and mild vascular engorgement . There is interval worsening of bibasilar ( right greater than left ) opacities , likely representing atelectasis ; however , additional pneumonia can not be excluded . An endotracheal tube ends 6 cm above the carina .
    OUTPUT:
    
New bibasilar opacities ( right greater than left ) likely representing atelectasis ; however , superimposed pneumonia can not be excluded .