Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly and tortuous aorta are stable . Aortic stent is present . Small left effusion is associated with adjacent atelectasis . There is no pulmonary edema or pneumothorax . There is a small hiatal hernia . Sternal wires are aligned . Patient is status post CABG .
    OUTPUT:
    
Small left effusion with adjacent atelectasis . No pulmonary edema