Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates a very dense left lower lobe consolidation , with some probable volume loss , progressed from ___ . This likely represents atelectasis versus pneumonia . There is a moderate size right - sided pleural effusion . Mild pulmonary edema . Stable appearing left - sided perihilar opacity . The ET - tube is in good position . Nasogastric tube is in the stomach and off the image . No pneumothorax .
    OUTPUT:
    
1 . ET tube in good position . 2 . Very dense left lower lobe consolidation , with some probable volume loss , progressed from ___ . This likely represents atelectasis versus pneumonia .