Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged . Patient is status post CABG . Mediastinal contour is unchanged . Moderate pulmonary edema is present with small bilateral pleural effusions and bibasilar airspace opacities most likely reflective of atelectasis . Infection can not be completely excluded . No pneumothorax is detected . There are no acute osseous abnormalities .
    OUTPUT:
    
Moderate congestive heart failure with moderate pulmonary edema , small bilateral pleural effusions , and bibasilar airspace opacities likely reflective of atelectasis . Infection in the lung bases , however , can not be completely excluded .