Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to one hour prior , there has been interval repositioning of the endotracheal tube with the tip located 5 .5 cm above the carina . There is persistent collapse of the right upper lobe , though slightly improved compared to prior study . The left lung is clear . There is no large pleural effusion or pneumothorax . There remains slight widening of the hilar and mediastinal silhouette with pneumomediastinum and subcutaneous gas tracking cranially in the neck .
    OUTPUT:
    
1 . Interval repositioning of endotracheal tube now in standard positioning with persistent but improved right upper lobe collapse . 2 . Pneumomediastinum and subcutaneous gas in the neck similar to immediate prior .