Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minimal right apical pneumothorax . Mediastinal structure and trachea are shift to the right . A right chest tube was positioned and its tip is positioned in the posterior - inferior right lung field . There is an incomplete atelectasis of the lingula with bilateral pleural effusion more evident on the left lung field .
    OUTPUT:
    
Small right apical pneumothorax Placement of right chest tube Subactelectasis of the lingula Bilateral pleural effusion