Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Left - sided pectoral pacer leads are in stable position . Bibasilar atelectasis and scarring are chronic . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
No acute cardiopulmonary process .