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 . Cardiomediastinal silhouette is within normal limits . Hypertrophic changes seen in the spine . Surgical clips seen in the right upper quadrant suggesting prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary process .