Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable supine frontal chest radiograph demonstrates interval placement of an endotracheal tube , with right mainstem intubation and mild atelectasis of the left lung . The right lung is clear . The nasoenteric tube courses below the diaphragm and off the inferior edge of the image . A right central line terminates in the mid SVC , likely unchanged in position compared to the recent chest radiograph , but now with improved lung volumes . A device projecting over the left scapula may represent a nerve stimulator . Surgical clips in the right upper quadrant are likely related to prior cholecystectomy . Pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Right mainstem intubation , with mild left sided atelectasis . Recommend retraction of the endotracheal tube by approximately 5 cm . NG tube and right IJ central venous catheter positioned appropriately .