Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is normal . Mediastinal and hilar contours are unremarkable . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized . No displaced fractures are seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced fracture identified . If there is continued concern for a rib fracture , consider a dedicated rib series .