Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear within normal limits aside from slight calcification along the aortic arch and mild unfolding of the descending thoracic aorta . The lungs appear clear . There are no pleural effusions or pneumothorax . The bones are probably demineralized . Mild degenerative changes are noted along the thoracic spine . A thoracic vertebral body at the thoracolumbar junction shows a moderate anterior wedge compression deformity with sclerosis along the superior endplate . There is incompletely characterized lower cervical spinal fusion and slight S - shaped curvature to the thoracic spine .
    OUTPUT:
    
1 . No evidence of acute disease . 2 . Bony demineralization and moderate compression deformity involving a thoracolumbar vertebral body .