Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest tube has been removed . There is a persistent small left apical pneumothorax . The size and distribution of small , left pleural loculations are unchanged . Aside from chronic left lung scarring , lungs are clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal .
    OUTPUT:
    
1 . Removal of left chest tube , with small persistent left apical pneumothorax . 2 . Unchanged small , multi-loculated left pleural effusion in comparison to chest radiograph with the same date .