Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , CABG , and left - sided AICD / pacemaker device with leads in unchanged positions . Mild cardiomegaly is re - demonstrated . Atherosclerotic calcifications of the aortic knob are again seen . Mediastinal and hilar contours are otherwise within normal limits . Pulmonary vasculature is not engorged . Lung volumes are slightly low . No focal consolidation , pleural effusion or pneumothorax is demonstrated . Minimal atelectasis is seen in the right lung base . Degenerative changes are noted involving the right acromioclavicular and glenohumeral joints .
    OUTPUT:
    
No acute cardiopulmonary abnormality .