Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged allowing for differences in technique . There is no pleural effusion or pneumothorax . The lungs appear clear . The bones appear demineralized . There is an unchanged mild chronic - appearing anterior wedge compression deformity of a mid thoracic vertebral body .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .