Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates interval repositioning of an endotracheal tube , which now terminates 2 cm from the carina . The enteric tube is not visualized on this exam . Diffuse patchy opacities are unchanged . Increased retrocardiac opacity likely reflects atelectasis . There is no appreciable pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . Interval repositioning of an endotracheal tube , now terminating 2 cm from the carina . This can be pulled back 1 - 2 cm to terminate in the mid thoracic trachea . 2 . OG tube not visualized . 3 . Unchanged diffuse patchy opacities . Increased retrocardiac opacity , likely atelectasis .