Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . An endotracheal tube is no longer visualized . The patient is post CABG . Again seen are bilateral pulmonary opacities which are minimally changed since ___ , reflecting known ARDS . There is no pneumothorax or large pleural effusion . The heart is mildly enlarged .
    OUTPUT:
    
Unchanged appearance of widespread pulmonary opacities , reflecting known ARDS .