Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The aorta is again mildly tortuous . There is no pleural effusion or pneumothorax . The lungs appear clear . The patient is status post anterior cervical fusion . The usual kyphotic curvature of the lower thoracic spine is straightened . Mid thoracic interspaces are mildly narrowed .
    OUTPUT:
    
No evidence of acute disease .