Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacer device is noted with leads terminate in the right atrium and right ventricle . The cardiac , mediastinal and hilar contours are unchanged , with the heart size within normal limits . The pulmonary vasculature is not engorged . Lungs appear clear . No focal consolidation , pleural effusion or pneumothorax is present . Previously noted pulmonary nodules seen on chest CT are not clearly assessed on the current chest radiograph . Mild compression deformity involving the superior aspect of the L1 vertebral body appears new in the interval with the L2 vertebral body superior endplate compression deformity appearing unchanged .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . Interval development of mild compression deformity involving the superior aspect of the L1 vertebral body . Unchanged superior endplate compression deformity of the L2 vertebral body .