Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable appearance of surgical clips and median sternotomy wires from prior CABG as seen on previous radiographs . There is mild DJD in the thoracic spine with multilevel osteophytes without significant interval change . There is mild cardiomegaly best appreciated on lateral view . There is no interval change in the cardiomediastinal contours . There is a paucity of vessels seen in the upper lobes bilaterally which is consistent with centrilobular emphysema as seen on prior CT scan . There are no parenchymal opacities seen . There are no pneumothoraces or effusions .
    OUTPUT:
    
No lung lesions appreciated . No significant interval changes .