Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The aorta shows moderate unfolding , similar to the prior examination . The cardiac , mediastinal and hilar contours appear unchanged . The lungs appear clear . There are no pleural effusions or pneumothorax . Healed left - sided posterior third through sixth ribs are noted . There is also suggestion of prior healed right anterior third rib fracture which appears unchanged . Incompletely characterized degenerative changes are noted along the lower cervical spine .
    OUTPUT:
    
1 . No evidence of acute disease . 2 . No evidence for cardiac enlargement although the aorta is again tortuous .