Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube approximately 1 .0 cm above the carina , can be retracted for more optimal positioning . Nasoenteric tube within the distal esophagus and should be advanced . The heart is enlarged . Left basilar and perihilar opacities likely represent atelectasis . There is mild interstitial edema . There is a small left pleural effusion . There is no pneumothorax .
    OUTPUT:
    
1 . Endotracheal tube 1 .0 cm above the carina , can be retracted for more optimal positioning . 2 . Nasoenteric tube within the distal esophagus , recommend advancing for more optimal position . 3 . Atelectasis of the left lung base and perihilar region . 4 . ___ left pleural effusion .