Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . The cardiac , mediastinal and hilar contours appear unchanged , allowing for differences in technique . The lungs appear clear . There is no pleural effusion or pneumothorax . No free air is demonstrated . Mild degenerative changes are noted along the visualized thoracolumbar spine . There are slightly displaced fractures involving the right lateral fifth and sixth ribs , new since the recent prior examination .
    OUTPUT:
    
New right - sided rib fractures . No evidence of acute disease .