Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is now a left - sided central venous catheter with tip projecting over the aortic arch . There is no pneumothorax . Rig left basilar atelectasis is noted . Azygos fissure is incidentally noted . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Left - sided central venous catheter with tip projecting over the aortic arch , not in expected location of standard venous anatomy . Consider PA and lateral for further assessment .