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Papavasiliou P , Arrangoiz R , Zhu F , Chun YS , Edwards K , Hoffman JP
The anatomic course of the first jejunal branch of the superior mesenteric vein in relation to the superior mesenteric artery
Int J Surg Oncol. 2012 ;2012 :538769
PMCID: PMC3303700   
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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.
Notes
Papavasiliou, Pavlos Arrangoiz, Rodrigo Zhu, Fang Chun, Yun Shin Edwards, Kristin Hoffman, John P United States International journal of surgical oncology Int J Surg Oncol. 2012;2012:538769. Epub 2012 Feb 22.