Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . The cardiomediastinal silhouette and hilar contours are normal . There is no pleural effusion or pneumothorax . Surgical clips project over the right upper quadrant . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary abnormality . No displaced rib fracture is detected , although chest radiography has limited sensitivity for rib fractures .