Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube is seen with tip 5 .1 cm from the carina . There is right basilar opacity which silhouettes the hemidiaphragm . Elsewhere , the lungs are clear . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Endotracheal tube tip 5 .1 cm from the carina . Right basilar opacity potentially due to layering effusion with atelectasis , infection not excluded .