Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post aortic stent graft placement , with similar appearance of the graft and adjacent aortic contour . Cardiac silhouette remains enlarged , but there is no evidence of pulmonary edema . Within the lungs , minor areas of atelectasis are present at both lung bases . Questionable pleural effusions have developed .
    OUTPUT:
    
Minor bibasilar atelectasis and possible small pleural effusions .