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 . Mediastinal and hilar contours are relatively unchanged , with mild interstitial pulmonary edema appearing similar compared to the prior exam . No pleural effusion or pneumothorax is visualized . Degenerative changes of the right acromioclavicular joint are noted with narrowing of the right acromiohumeral interval suggestive of rotator cuff disease . Mild degenerative changes of the thoracic spine are also present .
    OUTPUT:
    
Mild interstitial pulmonary edema , similar compared to the prior exam .