Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large right pleural effusion is unchanged in size . There is associated right basilar atelectasis / scarring , also stable . Healed right rib fractures are noted . On the left , there is persistent apical pleural thickening and apical scarring . Linear opacities projecting over the lower lobe are also compatible with scarring , unchanged . There is no left pleural effusion . There is no pneumothorax . Hilar and cardiomediastinal contours are difficult to assess , but appear unchanged . Vascular stent is seen in the left axillary / subclavian region .
    OUTPUT:
    
Unchanged right pleural effusion . Stable multifocal scarring and left apical pleural thickening .