Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right chest wall pacemaker with leads demonstrated within the right ventricle and in the lower portion of the right atrium , similar since ___ . There is no evidence of pneumothorax . There are no acutely occurring parenchymal opacities concerning for pneumonia with chronic interstitial changes . There are no pleural effusions . The cardiomediastinal and hilar contours are stable demonstrating moderate cardiomegaly and tortuosity of the thoracic aorta . Pulmonary vascularity is not increased . There are multilevel degenerative changes of thoracolumbar spine as manifested by marginal osteophytic formation and endplate sclerosis .
    OUTPUT:
    
No acute cardiopulmonary process . Pacemaker with leads within the inferior portion of the right atrium and the right ventricle .