Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube has been pulled back , now 4 cm from the carina . The enteric tube is still coiled within the stomach . Low lung volumes are noted . Previously noted parenchymal opacities have predominantly resolved . The left and right heart borders are better delineated . The hila are better defined . There is no evidence for pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Substantially improved pulmonary edema . 2 . Endotracheal tube in appropriate position .