Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is borderline in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . The lungs appear clear . There is mild S - shaped curvature to the visualized thoracolumbar spine . The lower thoracic interspaces appear mildly narrowed with subchondral sclerosis at several levels with small anterior osteophytes . A mid thoracic level is moderately narrowed with a mild deformity in which the anterior superior endplate of the lower body is depressed but most suggestive of a chronic finding .
    OUTPUT:
    
No evidence of acute disease .