Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is top - normal . The aorta is tortuous . . The lungs are clear . There is no pneumothorax or pleural effusion . There is increase of a elevation of the right hemidiaphragm . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormalities