Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube is in optimal position terminating 3 .5 cm above the carina . A nasogastric tube coils within the stomach , with the tip terminating in the distal stomach . No pneumothorax or large pleural effusions are seen . There is diffuse opacity overlying the entire right lung and major portion of the left upper lung , which likely represent diffuse pulmonary edema , ARDS or hemorrhage . No acute osseous abnormality seen .
    OUTPUT:
    
Diffuse opacities in the right lung and left upper lung , likely represents pulmonary edema , ARDS or hemorrhage . ET tube in optimal position .