Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube courses into the stomach , but the tip is beyond the field of view . The ET tube is approximately 8 .6 cm from the carina and should be advanced . Lung volumes are slightly hyperexpanded in the setting of known emphysema . There is no new focal airspace opacity to suggest pneumonia . The heart is not enlarged . The mediastinal and hilar contours are normal . There is a small right pleural effusion with persistent atelectasis at the right base but overall improved since ___ . There is no pneumothorax .
    OUTPUT:
    
1 . Interval improvement of opacity at the right base with persistent pleural effusion . 2 . The ET tube is approximately 8 .6 cm from the carina and should be advanced . Results telephoned to Dr . ___ by ___ at 10 :40 PM , ___ , at time of discovery .