Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prior right - sided central venous catheter is no longer visualized . There has been interval clearance of the dense retrocardiac opacity since prior exam . Minimal bibasilar opacities are noted . Superiorly the lungs are clear of consolidation and there is no effusion . There is however nodular opacity projecting over the anterior right second rib . Additional nodular opacities 1 projecting over each lung base are presumably nipple shadows but can be followed at time of subsequent exam . Moderate cardiomegaly is noted . No acute osseous abnormalities . TIPS identified in the right upper quadrant .
    OUTPUT:
    
Interval resolution of dense retrocardiac opacity seen on previous exam . There are bibasilar opacities presumably atelectasis noting that infection can not be entirely excluded . An 8 mm nodule at the right upper lung .