Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is stable . New large opacity in the right mid and lower lung is a combination of large effusion and atelectasis . New retrocardiac opacity is also due to atelectasis . There is no pneumothorax . Sternal wires are aligned . Patient is status post CABG . There is no pulmonary edema
    OUTPUT:
    
New large right pleural effusion with adjacent opacities likely atelectasis . No pulmonary edema .