Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal upright and lateral chest radiographs demonstrate well - expanded lungs . Cardiomediastinal contours are within normal limits . The lungs are clear . There is no pleural effusion and no pneumothorax . No displaced rib fractures are identified .
    OUTPUT:
    
No acute cardiopulmonary abnormalities and no displaced rib fractures .