Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . The heart is normal in size . A bulging of the right mediastinal contour is likely due to a mediastinal fluid collection and is grossly unchanged from comparison exams . Similarly , a small right pleural effusion is comparable to the frontal radiograph yesterday , but is significantly larger since ___ . On lateral radiograph , a fluid meniscus in the the right posterior costophrenic sulcus was not seen 6 days prior A small area of atelectasis on the lateral view can not be further localized to either hemithorax . There is no pneumothorax .
    OUTPUT:
    
1 . Small right pleural effusion is comparable to the frontal radiograph yesterday , but significantly larger compared to 6 days prior . 2 . Mediastinal fluid collection is seen as a bulging of the right mediastinal contour and is grossly unchanged . 3 . Mild atelectasis on the lateral view can not be further localized to either hemithorax .