Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly has not changed appreciably since ___ . The patient has had a median sternotomy and coronary bypass grafting . There is minimal bilateral pulmonary vascular congestion , no evidence of pulmonary edema . No focal consolidations concerning for infection is identified . There is no large pleural effusion . There is no evidence of a pneumothorax .
    OUTPUT:
    
Minimal evidence of pulmonary vascular congestion ; however , no evidence of pulmonary edema .