Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal and lateral chest radiographs demonstrate retrocardiac opacifications , unchanged compared to ___ , likely representing combination of atelectasis and stable small left - sided pleural effusion . Streaky opacifications in the right lung base likely represent minimal atelectasis . Small stable right pleural effusion . There is stable enlargement of the ascending thoracic aorta , with no radiographic perceptible increase in diameter . Interval removal of right central venous sheath catheter .
    OUTPUT:
    
Bibasilar opacifications , left greater than right , likely combination of atelectasis and stable small pleural effusions . Stable mediastinum , unable to differentiate between aorta and hematoma at this point .