Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . The cardiac and mediastinal silhouettes are stable , with the cardiac silhouette enlarged . Left - sided pacemaker is grossly stable . There is mild to moderate pulmonary edema . No large pleural effusion is seen . There is no evidence of pneumothorax .
    OUTPUT:
    
Pulmonary edema and cardiomegaly .