Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph and CT torso , no significant change . Fractures of the right posterior third through fifth ribs and left posterior fifth through seventh ribs are again noted . Right upper lobe opacity is due to pulmonary contusion . No larger effusions , pneumothorax , or hemothorax .
    OUTPUT:
    
No significant change in the rib fractures and right upper lobe contusion . No larger effusions , pneumothorax , or hemothorax .