Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual chamber pacemaker with leads terminating in the right atrium and right ventricle is in unchanged position . Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality .