Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The aorta again shows moderate unfolding with calcifications seen along the aortic arch . The mediastinal and hilar contours appear unchanged . Minimal residual left lingular atelectasis persists but has decreased . The lungs appear otherwise clear . There is no pleural effusion or pneumothorax . Mild - to - moderate degenerative changes are similar along the thoracic spine .
    OUTPUT:
    
No evidence of acute disease .