Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC is present , and is visible to the level of the junction of the right subclavian and brachiocephalic veins , but the tip is not confidently visualized on this radiograph . It could potentially be obscured by an indwelling right internal jugular vascular catheter . If warranted clinically , an oblique view could be obtained to better visualize the catheter . Widening of mediastinum is likely due to mediastinal lipomatosis given extensive mediastinal fat present on prior thoracic MRI spine study of ___ . Cardiac silhouette is enlarged but stable in size . Lungs are clear except for a linear focus of atelectasis in the left mid lung region . Postoperative changes are present within the spine .
    OUTPUT:
    
Tip of PICC is not confidently visualized . Additional oblique view of the chest could be obtained for better visualization if warranted clinically .