Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Left - sided pacemaker device is noted with leads terminating in the right atrium , right ventricle , and region of the coronary sinus . Moderate cardiomegaly is unchanged . The mediastinal and hilar contours are stable . No pulmonary vascular congestion is demonstrated . Small bilateral pleural effusions are noted , right greater than left , with bibasilar patchy opacities , likely atelectasis . There is no pneumothorax . Mild to moderate degenerative changes are noted in the thoracic spine . Oral contrast is seen within the abdominal loops of bowel . Multiple clips are also demonstrated within the upper abdomen .
    OUTPUT:
    
Small bilateral pleural effusions and bibasilar patchy opacities likely atelectasis . No pulmonary edema .