Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided chest tube has been removed . Residual moderate apical pneumothorax with air - fluid level is unchanged . Interstitial bilateral lung opacities are due to pulmonary edema superimposed on emphysema . Mediastinal and cardiac contours are normal . NG tube is in the stomach . There has been some rib resection on the right side .
    OUTPUT:
    
1 . Residual hydropneumothorax in the surgical cavity is unchanged after chest tube removal . 2 . Stable interstitial pulmonary edema .