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International Journal of Surgical Oncology
Volume 2012 (2012), Article ID 538769, 4 pages
http://dx.doi.org/10.1155/2012/538769
Clinical Study

The Anatomic Course of the First Jejunal Branch of the Superior Mesenteric Vein in Relation to the Superior Mesenteric Artery

1Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
2Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
3Department of Radiology, Fox Chase Cancer Center, Philadelphia, PA 19111, USA

Received 1 October 2011; Accepted 13 December 2011

Academic Editor: Steven N. Hochwald

Copyright © 2012 Pavlos Papavasiliou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction. The purpose of this study is to determine the anatomic course of the first jejunal branch of the superior mesenteric vein (SMV) in relation to the superior mesenteric artery (SMA). Methods. Three hundred consecutive contrast-enhanced computed tomography (CT) scans were reviewed by a surgical oncologist with confirmation of findings by a radiologist. Results. The overall incidence of a first jejunal branch coursing anterior to the SMA was 41%. There was no correlation between patient gender and position of the jejunal branch. In addition, there was no correlation between size of the first jejunal branch and its location in relation to the SMA. The IMV drained into the SMV in 27% of the patients. The IMV drained into the SMV-portal vein confluence in 17% of patients and inserted into the splenic vein in 54%. An anterior coursing first jejunal branch statistically correlated with an IMV that drained into the SMV-portal vein confluence ( 𝑃 = 0 . 0 0 9 ). Conclusion. The first jejunal branch of the SMV has a highly variable course in relation to the SMA and has a higher incidence of an anterior location in this population than previously reported.