Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker / AICD device is again noted with leads terminating in the right atrium and right ventricle , unchanged . Mild to moderate cardiomegaly is re - demonstrated . Mediastinal and hilar contours are unchanged . Mild atherosclerotic calcifications are noted at the aortic knob . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .