Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . All but a tiny residual of the left apical pneumothorax has been evacuated . There is atelectasis in the left lung base , otherwise the lungs are clear . There are no pleural effusions . Mediastinal and hilar contours are normal . Left - sided pigtail pleural catheter location is unchanged .
    OUTPUT:
    
Nearly complete resolution of the left apical pneumothorax since earlier today .