Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the study from earlier that day , there is mild improvement of the interstitial pulmonary edema . Again there are low lung volumes with enlargement of the cardiac silhouette and . The tip of the endotracheal tube is 2 cm from the carina . No pneumothorax . Monitoring and support devices are unchanged .
    OUTPUT:
    
The tip of the endotracheal tube is 2 cm from the carina . Mild interval improvement in the interstitial pulmonary edema .