Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy CABG . Left - sided pacer device is noted with leads in unchanged positions . Moderate cardiomegaly is similar . Mediastinal and hilar contours are unchanged . There is mild pulmonary vascular congestion without overt pulmonary edema . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Moderate cardiomegaly with mild pulmonary vascular congestion .