Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well - expanded and clear . Cardiomediastinal and hilar contours are unremarkable . Calcifications are seen at the aortic arch . No pneumothorax , pleural effusion , or consolidation . No acute displaced rib fractures identified .
    OUTPUT:
    
No acute displaced rib fractures identified . Subtle sequela of trauma may be missed on a chest radiograph . If there is ongoing clinical concern for fracture , recommend dedicated rib films or CT .