Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle . Mild cardiomegaly is re - demonstrated . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Apart from minimal atelectasis in the lung bases , the lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .