Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright frontal view of the chest . The endotracheal tube terminates 4 cm above the carina . An upper enteric tube ends in the mid portion of a non-distended stomach . There is right lower lobe atelectasis as well as opacities consistent with mild pulmonary edema . There is no pleural effusion or pneumothorax . Mild cardiomegaly is unchanged .
    OUTPUT:
    
Mild pulmonary edema and mild cardiomegaly are relatively unchanged since ___ .