Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette remains enlarged , likely reflecting a pericardial effusion as demonstrated on CT of ___ . Marked volume loss in the right hemithorax is again demonstrated with inferior displacement of the right hilum and relatively geographically marginated opacities in the right mid and lower lung corresponding to known areas of post-radiation fibrosis and an accompanying pleural effusion , all essentially unchanged since the recent radiograph . Interval improvement in degree of pulmonary vascular congestion . No new or worsening opacities identified to suggest an acute pneumonia .
    OUTPUT:
    
1 . Improved pulmonary vascular congestion . 2 . Stable post - treatment changes in right hemithorax . Note that an underlying infectious pneumonia would be difficult to detect in this post-treatment region , particularly on a portable chest radiograph . If symptoms of infection persist , PA and lateral chest radiographs may be helpful to more fully evaluate the lung bases .