Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , mild to moderate bibasilar atelectasis is increased . The lungs are grossly clear . The heart size is unchanged . The tip of an endotracheal tube is seen 2 .7 cm above the carina . The feeding tube is seen in the stomach . No pneumothorax or pulmonary edema . Leftward mediastinal shift is noted .
    OUTPUT:
    
1 . Increase of mild to moderate bibasilar atelectasis since ___ .