Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a large - bore central venous catheter with tip projecting just distal to the expected location of the cavoatrial junction . No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . Lung volumes are low . Heart size is top normal . Mediastinal contours are within normal limits .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .