Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy and CABG . The cardiac silhouette remains top normal to mildly enlarged . The mediastinal contours are stable . There is blunting of bilateral posterior costophrenic angles suggesting small bilateral pleural effusions . No pneumothorax is seen . The aorta remains calcified and tortuous .
    OUTPUT:
    
Small bilateral pleural effusions with overlying atelectasis . Mildly enlarged cardiac silhouette .