RT Journal Article SR Electronic T1 Diagnostically challenging tumour in a great vessel: leiomyosarcoma of inferior vena cava JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 383 OP 383 DO 10.1136/emj.2008.059964 VO 26 IS 5 A1 J S You A1 Y E Chung A1 S Park A1 S P Chung A1 J W Park YR 2009 UL http://emj.bmj.com/content/26/5/383.abstract AB