Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no new consolidation . Slight improvement of left retrocardiac atelectasis . Slight improvement also of the very mild pulmonary edema . Mild - to - moderate cardiomegaly is unchanged with prior history of median sternotomy . There is no pneumothorax or no significant pleural effusion . Right - sided PICC line ends in cavoatrial junction and nasogastric tube is in adequate position .
    OUTPUT:
    
There is no new pulmonary consolidation . Improvement of mild pulmonary edema .