Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to earlier exam from earlier the same day at 4 : 17 p .m . There has been interval retraction of the endotracheal tube whose tip is now 2 .9 cm from the carina . Nasogastric tube is seen passing below the diaphragm . Otherwise , there has been no change . The lungs are clear of large confluent consolidation . Cardiac silhouette is mildly enlarged . Dense atherosclerotic calcification is noted at the arch . Osseous structures are grossly unremarkable .
    OUTPUT:
    
Endotracheal tube with tip now 3 cm from the carina . Other details as above .