Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is in adequate position and NG tube ends below the diaphragm . Right lower lung collapse is unchanged . Left lower lung opacities that were increased in yesterday x-ray compared to ___ have slightly improved , part of it could be from layering pleural effusion . There is no pneumothorax . Cardiac contour is hard to assess throughout the lung abnormality .
    OUTPUT:
    
1 . Unchanged severe left lower lung collapse . 2 . Improvement of left lower lung opacities which could partly be explained by layering pleural effusion .