Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Mild bibasilar atelectasis is noted . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pulmonary edema , pneumothorax , or pleural effusion . No focal consolidations are seen . A large mid thoracic spine anterior spur is noted . Clips noted in the upper abdomen .
    OUTPUT:
    
No acute intra thoracic process .