Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart is mildly enlarged but unchanged . Aortic calcifications are present , with the mediastinal contours relatively stable . There is mild pulmonary edema , new compared to the prior exam . Left - sided pleural thickening is re - demonstrated , unchanged . No pleural effusion or pneumothorax is identified . As noted previously , focal calcification overlying the right 2nd rib anteriorly is unchanged and may reflect a bone island , granuloma , or calcified pleural plaque . Degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
Mild pulmonary edema .