Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior chest radiograph , there has been no significant change . The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The mediastinal contours are normal . The cardiac size is at the upper limits of normal . A left - sided implantable cardiac device is present with the leads in the right atrium and right ventricle .
    OUTPUT:
    
No acute cardiopulmonary process .