Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single - lead pacemaker device terminates in the right ventricle . The heart has a globular configuration and shows similar moderate enlargement . Mitral annular calcifications are present . The aortic arch is calcified . There is a persistent right mid lung opacity suggesting minor stable scarring . Elsewhere , the lungs remain clear . There is no pleural effusion or pneumothorax . Pleural effusions have resolved .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .