Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . A coned - in view of the left lower hemithorax was also acquired , with a radiopaque skin marker in place . Lung volumes are low . The lungs are clear . The heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen . No displaced rib fractures are identified .
    OUTPUT:
    
1 . No acute cardiac or pulmonary process . 2 . No displaced rib fractures identified . If there is persistent concern for a rib fracture , a dedicated rib series could be obtained .