Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 .7 cm above the carina . An enteric tube terminates within a large hiatal hernia , above the level of the diaphragm . Numerous surgical clips project over the mediastinum . The heart may be minimally enlarged . There is mild pulmonary vascular congestion as well as subtle opacity at the base of the right lung which may represent atelectasis or possibly aspiration in the appropriate clinical setting . There is a large left pneumothorax causing rightward mediastinal shift .
    OUTPUT:
    
1 . Large left pneumothorax causing rightward mediastinal shift . 2 . Enteric tube terminates within a large hiatal hernia above the diaphragm . 3 . Opacity at the base of the right lung may represent atelectasis or aspiration in the appropriate clinical setting . 4 . Mild pulmonary vascular congestion .