Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube in appropriate position approximately 2 .5 cm above the carina . A nasoenteric tube crosses the left hemidiaphragm with the tip not visualized . The heart is massively dilated . There are bilateral lung opacities , most pronounced at the right lung apex . There is no pneumothorax or large pleural effusion .
    OUTPUT:
    
1 . Endotracheal tube in appropriate position . 2 . Massively dilated heart . 3 . Low lung volumes with bilateral airspace opacities , likely representing pulmonary edema .