Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Heart size is normal . Aorta is tortuous and noncalcified . There are no pleural effusions or pneumothorax . Mild chronic elevation of the left hemidiaphragm . Mild degenerative changes in the thoracic spine , with exaggerated kyphosis .
    OUTPUT:
    
No acute cardiopulmonary process .