Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , previous left basilar opacity is essentially resolved . Linear left basilar opacities likely scarring or atelectasis and pleural thickening are noted . Elsewhere , lungs are clear . Cardiomediastinal silhouette is within normal limits . Old healed bilateral rib fractures are noted .
    OUTPUT:
    
No acute cardiopulmonary process .