Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate interval resolution of right apical pneumothorax . The right chest tube is unchanged . Small right pleural effusion is also unchanged . The left lung is clear . No acute consolidation is identified . The cardiac and mediastinal contours are normal and unchanged .
    OUTPUT:
    
Interval resolution of right apical pneumothorax with otherwise unchanged appearance since the prior radiograph .