Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided pacemaker device with leads terminating in the right atrium and right ventricle appears unchanged . Cardiac silhouette size is normal . The aorta is mildly tortuous . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .