Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates very low lung volumes , which results in bronchovascular crowding . The low lung volumes likely accentuate the size the heart and mediastinum , which remain enlarged . Aorta is very tortuous . No pneumothorax . The nasogastric tube is coiled in the esophagus , and a portion of the coiled tube demonstrates an acute angle , which is concerning for potential damage to the tube .
    OUTPUT:
    
The nasogastric tube is coiled in the esophagus , and a portion of the coiled tube demonstrates an acute angle , which is concerning for potential damage to the tube . Recommend removal of the current tube , and replacement with a new tube .