Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mediastinum is widened secondary to known ascending aortic aneurysm , but is unchanged from prior exams . There is no new mediastinal widening . The cardiac silhouette is stably enlarged . Bilateral moderate pleural effusions are unchanged with associated bibasilar atelectasis . There are no new consolidations . There is no pneumothorax .
    OUTPUT:
    
1 . Unchanged appearance of the mediastinum . 2 . Bilateral moderate pleural effusions . 3 . Bibasilar atelectasis .