Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph performed 2 hours ago the endotracheal tube has been retracted and ends 2 .5 cm above the carina . Remainder of the lines and tubes are unchanged . Dense bilateral parenchymal opacities are not significantly changed . There is no pneumothorax or pleural effusion . The cardiac and mediastinal contours are stable .
    OUTPUT:
    
Retraction of the endotracheal tube which is now in appropriate position . Otherwise , there is no significant change .