Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates in the mid / low SVC . No pneumothorax is present . Lung volumes are lower compared to the previous study . The cardiac and mediastinal contours are unchanged with persistent mild cardiomegaly . There is crowding of the bronchovascular structures . Bibasilar atelectasis is slightly worse in the interval . A trace left pleural effusion is not excluded . There are no acute osseous abnormalities .
    OUTPUT:
    
Right internal jugular central venous catheter tip in the mid / low SVC . No pneumothorax .