Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle . Heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is not engorged . Minimal linear opacities are noted within the lung bases , likely reflective of subsegmental atelectasis or chronic interstitial abnormality . There is no pleural effusion , focal consolidation or pneumothorax . Minimal anterior wedging of a lower thoracic / upper lumbar vertebral body is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .