Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is intubated . A orogastric tube courses into the stomach , its distal extent not visualized . The mediastinum is widened , including about the periaortic region . A chest tube terminates in the right hemithorax . There is potentially a small pneumothorax on the right . There is extensive retrocardiac opacity in the left lower lobe which may be due to partial collapse of the left lower lobe . Pleural effusions are difficult to exclude , particularly on the left , but not explicitly demonstrated . Substantial subcutaneous emphysema about the course of the right - sided chest tube is noted along the right lateral chest wall .
    OUTPUT:
    
1 . Perhaps trace residual right - sided pneumothorax , although evaluation is limited on an AP portable supine view such as this . 2 . Chest tube in situ on the right . 3 . Widening of the mediastinum for which CT evaluation is indicated ( apparently already performed at an outside institution ) .