Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Retrocardiac consolidation on the left is new compared to yesterday 's study . Bilateral central venous catheters and endotracheal tube appears in unchanged positions . Taking into account the lower degree of inspiration on the current study there is probably no significant central pulmonary vascular congestion .
    OUTPUT:
    
New left retrocardiac consolidation which could be atelectasis or pneumonia , consider aspiration pneumonia .