Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild heterogeneous opacities are seen in the bilateral lung bases . The cardiac silhouette is top - normal in size . There is no pneumothorax or pleural effusion . Endotracheal tube ends 6 .5 cm from the carina . Enteric tube courses into the stomach .
    OUTPUT:
    
1 . Endotracheal tube ends explain 5 cm from the carina . 2 . Heterogeneous bibasilar opacities are most consistent with atelectasis , although aspiration pneumonia could be considered in the appropriate clinical setting .