Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Lower lung volumes seen on the current exam . Bibasilar opacities are likely secondary to atelectasis . Lungs are otherwise clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is identified . Surgical clips are identified in the right upper quadrant suggesting prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary process .