Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The nasogastric tube is not visualized within the thorax . Left sided PICC remains in the upper SVC . The lungs are otherwise unchanged in appearance with moderate cardiomegaly and unfolding of the thoracic aorta .
    OUTPUT:
    
The nasogastric tube is no longer visualized within the thorax .