Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube tip is 4 .5 cm from the carina . Enteric tube passes below the field of view . Appearance of the lungs is not significantly changed noting bilateral parenchymal opacities more confluent on the left than on the right . Cardiomediastinal silhouette is within normal limits . Chronic likely posttraumatic changes seen centered at the left shoulder .
    OUTPUT:
    
ET and enteric tubes in appropriate positions . Bilateral parenchymal opacities , potentially edema , bilateral infection or ARDS .