Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is persistent volume loss in the right hemithorax with band - like opacity in the right lower lung , a fiducial marker , and similar effacement of the right costophrenic sulcus . However , the appearance is very similar to the prior study . Although a persistent pleural effusion is difficult to exclude on the right , there is no evidence for one on the left .
    OUTPUT:
    
Stable appearance of the chest .