Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An enteric tube is again seen coursing below the level of the diaphragm , inferior aspect not included on the image . There is persistent left base opacity which may be due to atelectasis with possible small pleural effusion . A trace right pleural effusion is difficult to exclude . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Persistent left base opacity , likely combination of pleural effusion and atelectasis .