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 and right ventricle . Heart size remains mildly enlarged . The mediastinal and hilar contours are unchanged . There is mild to moderate pulmonary edema , which appears minimally improved compared to the previous exam . Small bilateral pleural effusions are re - demonstrated . No pneumothorax is identified . No acute osseous abnormalities seen .
    OUTPUT:
    
Mild to moderate pulmonary edema , slightly improved compared to the previous exam with small bilateral pleural effusions .