Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Severe cardiomegaly is re - demonstrated , unchanged . Mediastinal and hilar contours are stable . There is mild pulmonary vascular congestion which appears to be chronic . No overt pulmonary edema is seen . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe cardiomegaly with mild chronic pulmonary vascular congestion .