Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is severe cardiomegaly . The mediastinal and hilar contours are stable . There is no pneumothorax or large pleural fusion . The lungs are well - expanded . There is mild vascular congestion . Slight increased vascular markings at the right base likely represents asymmetric pulmonary edema . The patient is status post CABG . Left axillary pacemaker is noted with leads in stable positions .
    OUTPUT:
    
Mild increased vascular congestion , slightly more prominent the right base . The most ready explanation for this finding is asymmetric pulmonary edema .