Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are within normal limits . Lungs are hyperinflated , unchanged , and clear . No pleural effusion or pneumothorax is present . There is mild loss of height anteriorly of a lower thoracic vertebral body , which is unchanged from the prior study .
    OUTPUT:
    
No acute cardiopulmonary abnormality .