Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is complete opacification of the right hemithorax , which is new from the preprocedure chest radiograph on ___ . Additionally , when compared to the intra-procedural CT images performed earlier on the same date , this represents a new finding . Mediastinum is shifted towards the left . Left lung is essentially clear . There is no pneumothorax . Right IJ catheter introducer sheath is noted . ET tube terminates 3 .9 cm above the carina . An enteric tube extends the body of the stomach .
    OUTPUT:
    
New complete opacification of the right hemithorax with leftward mediastinal shift , which may represent simple fluid or hemorrhage .