Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube , left apical chest tube , left IJ central venous catheter , and nasogastric tubes are unchanged . Aeration at the left base has substantially improved following suctioning . New right lower lobe airspace opacities have developed . The left lung remains clear . The heart and mediastinum are within normal limits .
    OUTPUT:
    
Re-expansion of the right lower lobe with new right lower lobe airspace opacities , which may be due to re-expansion pulmonary edema , aspiration or hemorrhage .