Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , CABG , and mitral valve replacement . Mild enlargement of cardiac silhouette is unchanged . Patient is also status post right lower lobe wedge resection as well as right mastectomy with soft tissue density projecting over the right chest wall re - demonstrated . Lungs remain hyperinflated with attenuation of the pulmonary vascular markings towards the upper lobes compatible with emphysema . Pulmonary vasculature is not engorged . Mediastinal and hilar contours are similar with atherosclerotic calcification of the aorta again noted . Linear opacities in both lung bases likely reflect areas of atelectasis or scarring . No focal consolidation , pleural effusion or pneumothorax is present . Right basolateral pleural thickening is again demonstrated along with multiple prior right - sided rib deformities .
    OUTPUT:
    
No interval change from prior with postoperative changes in the right hemithorax and from prior CABG . Bibasilar atelectasis or scarring .