Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual lumen central venous catheter tip terminates in the right atrium . The heart size is normal . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities . Mild degenerative changes are noted in the thoracic spine . Vascular stent is seen within the left subclavian region .
    OUTPUT:
    
No acute cardiopulmonary abnormality .