Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are multiple bilateral rib fractures as demonstrated previously . There is evidence for they do and extrapleural soft tissue swelling or hematoma . Increased density at the right lung base has improved . The heart and mediastinal structures are stable . A tracheostomy tube remains in place . A right subclavian catheter has been withdrawn . The bilateral rods and pedicle screws appear intact and
    OUTPUT:
    
Interval improvement in right basilar opacity likely reflecting decreased pleural fluid and subsegmental atelectasis . A small focal area of consolidation at the right lung base can not be excluded . A right subclavian catheter has been withdrawn .