Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal with mild unfolding of the thoracic aorta . Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . There is mild left base atelectasis . Lungs are otherwise clear . Pleural surfaces are clear without effusion pneumothorax . There is moderate thoracolumbar dextroscoliosis . No displaced rib fracture is identified . There is moderate thoracic dextroscoliosis .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced rib fracture .