Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is post CABG , with intact median sternotomy wires . Moderate cardiomegaly and left atrial enlargement with splaying of the carina is unchanged . The tortuous aorta is also unchanged . Compared with the prior radiograph there is mild pulmonary vascular congestion . No significant pleural effusions . Remote right sided rib fractures are again identified .
    OUTPUT:
    
Mild pulmonary vascular congestion . Moderate cardiomegaly and left atrial enlargement is unchanged .