Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual - lumen central venous catheter is noted with tip terminating in the proximal right atrium . Heart size is normal . Mildly widened mediastinal contour is unchanged , compatible with fat as noted on the prior MRV . Hilar contours are normal and the pulmonary vascularity is not engorged . There are lungs are clear . No pleural effusion or pneumothorax is seen . There is no acute osseous abnormalities .
    OUTPUT:
    
Dual - lumen central venous catheter tip appears to terminate in the proximal right atrium .