Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The nasogastric tube ends in the distal esophagus and could be advanced . Cardiomegaly was present in ___ . Bilateral lower lobe opacities most likely represent atelectasis . No large pleural effusion or pneumothorax . The mediastinum is widened , likely due to positioning .
    OUTPUT:
    
The nasogastric tube ends in the distal esophagus and could be advanced . Marked cardiomegaly stable since ___ .