Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been prior stent graft repair of the aortic arch and proximal descending thoracic aorta . Bilateral pleural effusions are unchanged from the prior radiograph . Opacification of the left lung base is likely a function of atelectasis and pleural fluid . No new focal consolidation to suggest pneumonia .
    OUTPUT:
    
Unchanged small bilateral pleural effusions and left lower lobe atelectasis noting that infection would be difficult to exclude in the proper clinical setting .