Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Previously seen enteric tube is no longer visualized . Relatively low lung volumes are again noted . Left greater than right bibasilar opacities are seen , which persists on the lateral , which could be due to atelectasis ; however , infection or aspiration would be difficult to exclude . There is no pleural effusion . Cardiomediastinal silhouette is unchanged , atherosclerotic calcifications again noted at the aortic arch .
    OUTPUT:
    
Bibasilar opacities , potentially due to atelectasis given low lung volumes , noting that infection or aspiration can not be entirely excluded .