Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube courses below the diaphragm and out of the field of view of the image . Endotracheal tube terminates 6 .7 cm above the carina . Recommend inserting the endotracheal tube farther by several cm for more optimal positioning . Right IJ catheter is in unchanged position . Stable , borderline cardiomegaly . Normal mediastinal and hilar contours . Stable , mild pulmonary edema . Interval improvement in left lower lobe atelectasis . Possible , small left pleural effusion .
    OUTPUT:
    
1 . Interval improvement in left lower lobe atelectasis . 2 . Endotracheal tube terminates 6 .7 cm above the carina . Recommend inserting the endotracheal tube farther by several cm for more optimal positioning .