Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval advancement of an endotracheal tube , which now terminates only about 1 cm above the orifice of the right mainstem bronchus . A ___ tube again is seen passing through the esophagus , although its endpoint is not imaged . Costophrenic sulci are also partly excluded , but there has been no definite change . Bilateral pleural effusions , greater on the right than left , are probably unchanged allowing for differences in technique , and persistent interstitial changes suggest pulmonary congestion , although the latter appear improved .
    OUTPUT:
    
Low - lying endotracheal tube . Retracting the tube slightly may be helpful if clinically indicated . Improving pulmonary edema and probably unchanged pleural effusions , although not fully imaged , including a large one on the right side .