Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Moderate cardiomegaly is unchanged as is tortuosity of the thoracic aorta . Diffuse thoracic aortic calcifications are again demonstrated . There is perihilar haziness with vascular indistinctness compatible with mild pulmonary edema , similar when compared to the prior study . Blunting of the costophrenic angles bilaterally is compatible with the presence of small bilateral pleural effusions . No pneumothorax is present . Retrocardiac opacity likely is reflective of atelectasis . No acute osseous abnormalities are seen .
    OUTPUT:
    
Mild congestive heart failure with small bilateral pleural effusions and retrocardiac atelectasis .