Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate stable appearance of calcified pleural thickening and parenchymal scarring within the right basilar hemithorax with volume loss and adjacent old rib fractures . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiac silhouette remains enlarged , though stable in size . Atrial and biventricular leads are stable in position from a left chest pacemaker .
    OUTPUT:
    
No acute chest pathology .