Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a chest tube at the right lung base . Previously seen kink at the chest wall is no longer visualized . The right apical pneumothorax remains visible , though it has decreased slightly in size . Scarring and probable loculated pneumothorax at the right lung base is again noted . There is new minimal blunting of the right costophrenic angle , which could reflect a small amount of pleural fluid and new trace blunting of left costophrenic angle . No CHF . No new infiltrate identified . Otherwise , I doubt significant interval change .
    OUTPUT:
    
1 . Right apical pneumothorax remains present , but is slightly decreased in size . 2 . New small right pleural effusion and trace blunting of the left costophrenic angle . No CHF .