Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The lungs appear clear bilaterally without focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures appear intact . No definite signs of displaced rib fracture . No free air below the right hemidiaphragm .
    OUTPUT:
    
No sign of acute injury .