Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ at 18 : 28 , a right - sided subclavian line is in place , tip over distal SVC . No pneumothorax is detected . Inspiratory volumes are now lower , with atelectasis or other patchy opacity in the right cardiophrenic region . The possibility of an early pneumonic infiltrate in this location can not be excluded . There is probably also minimal atelectasis at the left lung base . No frank consolidation is identified . The mid and upper zones of both lungs are clear . No effusion .
    OUTPUT:
    
Patchy opacity right cardiophrenic region with lower lung volumes --___ atelectasis versus early pneumonic infiltrate .