Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Mild enlargement of the cardiac silhouette is decreased compared to the prior study . Similarly is , previous pulmonary edema has improved with only mild pulmonary vascular congestion seen on the current exam . The aorta is mildly tortuous . Hilar contours are unremarkable . No pneumothorax or pleural effusion is identified , with resolution of the previously seen right pleural effusion . There are multilevel mild to moderate degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Interval improvement in previous pattern of pulmonary edema , now with only mild pulmonary vascular congestion . Resolution of previously noted right pleural effusion .