“…However, noninvasive imaging examinations, including echocardiography (Choi et al, 1990;Curtil et al, 1999; *Correspondence to: Mitsugi Nagashima, MD, Department of Surgery, Stroke and Cardiovascular Center, Ehime University Hospital, Shitsukawa, Toon City, Ehime 791-0295, Japan. E-mail: mitsugi@aqua.plala.or.jp Morhy Borges Leal et al, 2002;Towbin et al, 1987) and three-dimensional computed tomography (Chen et al, 2005;Chern et al, 1999;Gülsün et al, 2003;Kim et al, 1994;Takada et al, 1992), have recently increased the recognition of this anomaly. Usually, the normal left brachiocephalic vein obliquely descends left to right, courses superior and anterior to the aortic arch, and joins the right brachiocephalic vein forming the superior vena cava (SVC).…”