RT Journal Article SR Electronic T1 An unusual structure near the porta hepatis: What's your diagnosis? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1048 OP 1049 DO 10.1503/cmaj.1040318 VO 171 IS 9 A1 Meneghetti, Victor A1 Lee, Charles A1 Perry, Thomas L. A1 Andrews, Gordon YR 2004 UL http://www.cmaj.ca/content/171/9/1048.abstract