Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable semi upright frontal chest radiograph demonstrates the enteric to the extending below the diaphragm and terminating in the distal stomach . The enteric tube terminates in the mid thoracic trachea and the left PICC is unchanged in position . The lungs are incompletely imaged . There is improved aeration of the left base , with improvement of the retrocardiac opacity . Other parenchymal opacities appear unchanged . There is no large pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . The enteric tube terminates in the stomach . 2 . Improvement of retrocardiac opacity and left base aeration . Other parenchymal opacities are unchanged .