Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again mildly enlarged . The aorta is tortuous and partly calcified . The cardiac , mediastinal and hilar contours appear unchanged , allowing for differences in technique , however . There is no pleural effusion or pneumothorax . The lungs appear clear . The bones appear demineralized . There is again mildly exaggerated kyphotic angulation associated with unchanged loss in height among several mid thoracic vertebral bodies .
    OUTPUT:
    
No evidence of acute disease .