Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . Minimal bibasilar atelectasis is present . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . There are displaced fracture of the right posterior third and fourth ribs . No other fracture is identified . There is no loss of vertebral body height .
    OUTPUT:
    
Displaced fractures of the posterior right third and fourth ribs . No definite evidence of a pneumothorax or pleural fluid .