Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes with resultant bronchovascular crowding . Again seen is prominent right hilum , which is unchanged , and likely represents atelectasis versus pneumonia . A left - sided IJ central venous line is seen with the tip terminating in the mid SVC .
    OUTPUT:
    
Prominent right hilum , unchanged , likely represents atelectasis versus pneumonia .