Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right IJ central venous catheter which ends in the low SVC . There is no evidence of pneumothorax . Linear opacity at the left lung base is most compatible with atelectasis . The thoracic aorta is mildly tortuous . Cardiomediastinal silhouette is normal . There is no focal lung consolidation .
    OUTPUT:
    
Interval placement of a right IJ central venous catheter which ends in the low SVC . No pneumothorax .