Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle . Heart size is mildly enlarged . Atherosclerotic calcifications are noted at the aortic knob . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . Minimal atelectasis is noted in the lung bases . No focal consolidation , pleural effusion or pneumothorax is detected . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .