Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a left - sided dual - lead pacemaker with leads terminating in appropriate position in the right ventricle and atrium . The heart size is normal . The lungs are clear . Hilar contours are normal . There is no pleural effusion or pulmonary edema . Descending thoracic aorta is tortuous with no suggestion of aneurysm .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Appropriate lead positioning .