Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . A vascular stent is again noted within the left brachiocephalic vein , and the previously noted dual lumen central venous catheter has been removed . The mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .