Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ET tube , NG tube , and left chest tube are unchanged . There is a mildly displaced left lateral rib fracture as visualized on the prior study . There are bilateral lower lobe opacities that have worsened compared to prior studies compatible with volume loss / infiltrate / effusion left greater than right . There is an unusual area of lucency adjacent to the right hilum extending superiorly on the right that could represent some mediastinal air . The left posterior rib fractures are better visualized on the reference CT .
    OUTPUT:
    
Worsened appearance of the lungs , predominantly in the lower lobes .