Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal chest radiograph demonstrates largely unchanged bilateral infrahilar opacicities , likely atelectasis but can not exclude pneumonia . Endotracheal tube is seen terminating 5 cm above the level of the carina . An enteric tube descends in an uncomplicated course , it s end end out of view . Cardiomediastinal silhouette stable .
    OUTPUT:
    
Infrahilar opacities unchanged since ___ radiograph . Differential includes atelectasis versus pneumonia .