Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a right apical chest tube with development of a moderate right pneumothorax . There is stable elevation of the right hemidiaphragm and no appreciable mediastinal shift . A patchy opacity in the right lower lobe , best appreciated on the lateral view , likely represents an area of atelectasis . No large pleural effusions or focal consolidations are seen . The left lung is clear . The cardiomediastinal silhouette is stable . A small amount of subcutaneous air is seen tracking along the right chest wall at the site of prior chest tube . Interval removal of nasogastric tube is also noted .
    OUTPUT:
    
Moderate right - sided pneumothorax after chest tube removal with associated right lower lobe atelectasis .