Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular central venous catheter ends in the low SVC , as before . A pigtail catheter is again seen projecting over the lower left lung , with reformation of the pigtail compared to the prior radiograph from earlier today . Lung volumes are low , causing crowding of the bronchovasculature . There is increased right lower lung and left mid lung atelectasis . The heart size and mediastinal contours are not significantly changed . There is no definite pneumothorax . No pleural effusions are seen . Multiple left - sided rib fractures are re-demonstrated .
    OUTPUT:
    
1 . No definite pneumothorax . 2 . Low lung volumes with increased right lower lung and left mid lung atelectasis .