Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is marked leftward rotation of the patient . In comparison to prior radiograph there are low lung volumes and a poor inspiratory effort . Again seen in stable position is a left - sided tunneled hemodialysis catheter with distal tip projecting over the approximate location of the right atrium . There are no retained foreign bodies seen . The cardiomediastinal silhouettes are grossly unchanged . The bilateral hila are not well visualized . Allowing for differences in inspiratory effort , the bilateral lung parenchyma are grossly unchanged in comparison to prior radiograph . There is continued retrocardiac opacification and obscuring of the left hemidiaphragm , which may represent left lower lobe atelectasis . There are several foci of opacification seen in the right upper lung which correlate to the areas of mucoid impaction and adjacent ground glass opacities noted on prior chest CT from ___ . These appear unchanged in comparison to prior radiograph . There is no pneumothorax . There is no right effusion . The left lateral CP angle is not visualized on the current study which limits evaluation for left pleural effusion .
    OUTPUT:
    
1 . No foreign body seen . 2 . Left lower lobe atelectasis . 3 . Right upper lobe opacities which correspond to prior areas of mucoid impaction better appreciated on CT from ___ , unchanged since prior radiograph .