Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a left PICC with the tip at the cavoatrial junction , an endotracheal tube ending 3 cm above the carina , and interval placement of a nasogastric tube in the stomach . The remainder of the exam is unchanged , demonstrating mild cardiomegaly and low lung volumes .
    OUTPUT:
    
Interval placement of a nasogastric tube , with the tip in the stomach .