Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right IJ central venous catheter projects over the SVC . There is no pneumothorax . Despite low lung volumes , there is no consolidation or pleural effusion . Lungs are grossly clear . Heart and mediastinum are within normal limits . Regional bones and soft tissues are unremarkable .
    OUTPUT:
    
No intrathoracic source of infection identified . Clear lungs .