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. 2012:2012:538769.
doi: 10.1155/2012/538769. Epub 2012 Feb 22.

The anatomic course of the first jejunal branch of the superior mesenteric vein in relation to the superior mesenteric artery

Pavlos Papavasiliou  1 , Rodrigo Arrangoiz, Fang Zhu, Yun Shin Chun, Kristin Edwards, John P Hoffman
Affiliations

The anatomic course of the first jejunal branch of the superior mesenteric vein in relation to the superior mesenteric artery

Pavlos Papavasiliou et al. Int J Surg Oncol. 2012.

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 = 0.009). 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.

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Figures

Figure 1
Figure 1
Posterior coursing first jejunal branch.
Figure 2
Figure 2
Anterior coursing first jejunal branch.
Figure 3
Figure 3
No Common SMV Trunk. Jejunal and ileal branches joining at splenoportal confluence.
See this image and copyright information in PMC

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