Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided chest tube has been removed . Right internal jugular and left - sided PICC lines appear unchanged , both terminating in the superior vena cava . The cardiac , mediastinal and hilar contours are stable . The lung volumes are low . Patchy basilar opacities are unchanged and are most suggestive of atelectasis . There is no definite pneumothorax .
    OUTPUT:
    
No evidence of pneumothorax following chest tube removal . Low lung volumes and persistent basilar opacities , which could be seen with atelectasis , although infectious process is not excluded by this study .