Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Three sequential portable AP upright images ___ at 18 : 25 are submitted .
    OUTPUT:
    
On the initial images , the feeding tube courses within the left mainstem bronchus . On the final image , the feeding tube is below the diaphragm with the tip projecting over the stomach . Right internal jugular central line with its tip in the mid SVC . Overall cardiac and mediastinal contours are unchanged . The visualized lungs demonstrate persistent patchy opacity in the left lower lung concerning for aspiration or pneumonia and persistent elevation of the right hemidiaphragm of uncertain significance . The left costophrenic angle is not entirely included on this exam . No pneumothorax . No pulmonary edema .