Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable with tortuous aorta and Cardiac size is top - normal . Aside from minimal atelectasis in the right base , the lungs are clear . There is no pneumothorax or pleural effusion . There are mild degenerative changes in the thoracic spine
    OUTPUT:
    
No acute cardiopulmonary abnormalities