Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , minimal interval changes noted . Mild improvement in lung aeration but with continued mild to moderate atelectasis in the lung bases . Otherwise , lungs are grossly clear . The tip of an endotracheal tube is seen 5 .7 cm above the carina . A feeding tube is seen in the stomach and continues out of view . The heart size is unchanged . No pneumothorax
    OUTPUT:
    
1 . Mild improvement in aeration of the lungs with continued mild - to - moderate bibasilar atelectasis .