Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter terminates at the cavoatrial junction . Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . Lung volumes are low but lungs are otherwise clear . Pleural surfaces are clear without effusion or pneumothorax . There are no traumatic findings .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No traumatic findings .