Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs remain clear . There is minimal blunting of the posterior costophrenic angles , but no large pleural effusion . Cardiomediastinal silhouette is stable , noting multiple coronary artery stents . Multiple old healed anterior right rib fractures are again noted . Osseous and structures are otherwise notable for hypertrophic changes in the spine . Clips identified in the right upper quadrant suggesting prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary process .