Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New left PICC is likely in the mid left brachiocephalic vein , with tip projecting over the aortic arch . There is no significant pneumothorax . Small bilateral pleural effusions persist . The lungs are clear . Heart size is top normal . The aorta is tortuous and calcified . Multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Left PICC likely in the mid left brachiocephalic vein .