Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Moderate cardiomegaly appears similar compared to the previous exam . The aorta remains tortuous , and mediastinal and hilar contours are unchanged . Known mediastinal lymphadenopathy is better assessed on the previous CT . Mild asymmetric pulmonary edema on the left has developed in the interval with increased size of small bilateral pleural effusions . Patchy opacities in the lung bases likely reflect areas of atelectasis . No pneumothorax is present . Moderate multilevel degenerative changes are demonstrated in the thoracic spine .
    OUTPUT:
    
Mild asymmetric pulmonary edema on the left has developed in the interval with increased size of small bilateral pleural effusions .