Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube and ET tube are in acceptable positions . A stent projects over the expected location of the SVC and right atrium . New small bilateral pleural effusions with adjacent atelectasis are seen . Cardiomediastinal silhouette is stable . There is an opacity at the left upper lung which has increased from prior .
    OUTPUT:
    
Opacity at the left upper lung increased from prior , which could be atelectasis but could be pneumonia in the proper clinical setting .