Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Heart remains moderate to severely enlarged but unchanged . The aorta is tortuous and diffusely calcified . There is mild pulmonary vascular congestion . Small bilateral pleural effusions are re - demonstrated , not significantly changed from prior , right greater than left . No pneumothorax is identified . Mild bibasilar atelectatic changes are seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion with small bilateral pleural effusions .