中结肠静脉
Vena colica media
定义
结肠中静脉引流横结肠,通常汇入肠系膜上静脉(SMV),但其引流方式可存在变异:
在Yamaguchi等人的一项研究中,结肠中静脉在84.5%的病例中被发现直接汇入肠系膜上静脉,而在12.1%的病例中汇入胃结肠干。[1] Maki等人报告,结肠中静脉在62.5%的患者中汇入肠系膜上静脉,其他引流部位包括Henle胃结肠干、肠系膜下静脉、脾静脉及空肠静脉。[2]
參考資料
1.Venous Anatomy of the Right Colon: Precise Structure of the Major Veins and Gastrocolic Trunk in 58 Cadavers.Yamaguchi S, Kuroyanagi H, Milsom JW, Sim R, Shimada H.Diseases of the Colon and Rectum. 2002;45(10):1337-40. doi:10.1097/01.DCR.0000027284.76452.84.
2.The Variations of the Middle Colic Vein Tributaries: Depiction by Three-Dimensional CT Angiography.Maki Y, Mizutani M, Morimoto M, et al.The British Journal of Radiology. 2016;89(1063):20150841. doi:10.1259/bjr.20150841.