Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is the indwelling right - sided catheter , with tip over distal SVC . In addition , there is a new right - sided PICC line , with tip overlying the right atrium . No pneumothorax detected . Inspiratory volumes are low and the right hemidiaphragm remains elevated , with opacity at the right base , similar to prior . Minimal patchy opacity in the retrocardiac region is improved slightly . No gross effusion is detected on this AP view . No definite change in the cardiomediastinal silhouette . Focal opacity the left upper zone represent artifact due to overlap of the first anterior and fifth posterior left ribs .
    OUTPUT:
    
No gross effusion detected on either side , but smaller posterior effusions would not be apparent on this film . If clinically indicated , a lateral view could help for further assessment of posterior fusions . Continued opacity at the right lung base , similar prior . This is new compared with ___ , but similar the most recent prior study . This most likely represents atelectasis , but amount in appropriate clinical setting , an infectious consolidation could have similar appearance . Mild patchy opacity at the left base is improved compared with ___ . New right PICC line tip overlies the right atrium . Clinical correlation is requested .