Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the endotracheal tube is situated 5 .6 cm above the carina in appropriate position . A right IJ central venous catheter terminates at the upper SVC . The tip of the nasogastric tube is present in the gastric body . Lung volumes remain low with mild pulmonary edema , slightly improved since the prior study . Atelectasis at the right lung base is mild . The cardiac silhouette is mildly enlarged . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Minimal improvement in pulmonary edema , now mild .