Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is mildly tortuous . The pulmonary vascularity and hilar contours are normal . Interstitial opacities are noted at both lung bases , suggestive of a chronic changes . No pleural effusion , focal consolidation , or pneumothorax is present . No displaced rib fractures are noted . There are mild degenerative changes of the thoracic spine .
    OUTPUT:
    
1 . No displaced rib fractures noted , though evaluation of the right - sided ribs is somewhat limited . If there is continued clinical concern , a dedicated rib series can be obtained . 2 . Interstitial opacities in the lung bases , suggestive of an underlying chronic interstitial lung disease . This can be further assessed with a chest CT .