Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes , which results in bronchovascular crowding . Asymmetric opacification in the right mid lung may represent pulmonary edema , however aspiration could also be considered . The cardiomediastinal and hilar contours are grossly unchanged . There has been interval placement of an endotracheal tube , which ends approximately 3 .3 cm from the carina . Additionally , a right internal jugular central venous line has been placed over the interval , with the tip ending in the right atrium . Retraction of this line by 2 - 3 cm low will results in positioning in the low SVC . The nasogastric tube ends in the esophagus , and should be advanced prior to use . Review of the chest radiograph performed after this study reveals improved positioning of the right internal jugular central line and persistent positioning of the nasogastric tube in the esophagus .
    OUTPUT:
    
1 . Asymmetric opacification in the right midlung may represent edema , however aspiration could also be considered . 2 . Right internal jugular central venous line ends in the right atrium , and should be pulled back 2 - 3 cm for positioning in the low SVC . 3 . Nasogastric tube ends in the esophagus , and should be advanced prior to use .