Franceschini L J, Ortale J R
Department of Anatomy, Universidade Estadual de Campinas, UNICAMP, Cidade Universitária Zeferino Vaz, SP, Brazil.
Surg Radiol Anat. 1995;17(1):35-9. doi: 10.1007/BF01629497.
The ramification of the portal vein at the porta hepatis was studied by anatomic dissection performed in 32 formalin fixed human livers. In all the specimens there were branches which ran towards the caudate lobe, arising from the portal vein and either from the left or the right portal branches. Tri- and quadrifurcation of the portal vein was observed. In 5 cases (16%) there were branches arising from left portal branch or portal vein and directed anteriorly to the quadrate lobe or to the region of the gall-bladder sulcus. These branches ranged from 1.0 to 6.0 mm in diameter. The portal caudate branches were divided into 3 groups. Group 1: Branches to the papillary process; 1 or 2 branches in 26 cases (82%), 3 or 5 branches in 3 cases (9%) and no branches in 3 cases (9%); Group 2: Branches to the vena cava region, including the left part of the caudate process; 1 or 2 branches in 30 cases (94%), 3 branches in 1 case (3%) and no branches in 1 case (3%); Group 3: Branches to the right part of the caudate process; 1 or 2 branches in 12 cases (37%), and no branches in 20 cases (63%).
通过对32例福尔马林固定的人体肝脏进行解剖，研究了肝门处门静脉的分支情况。在所有标本中，均有分支从门静脉以及左或右门静脉分支发出，走向尾状叶。观察到门静脉存在三叉分支和四叉分支。在5例（16%）中，有分支从左门静脉分支或门静脉发出，向前指向方叶或胆囊窝区域。这些分支直径在1.0至6.0毫米之间。门静脉尾状叶分支分为3组。第1组：至乳头突的分支；26例（82%）有1或2支，3例（9%）有3或5支，3例（9%）无分支；第2组：至腔静脉区域的分支，包括尾状突左侧部分；30例（94%）有1或2支，1例（3%）有3支，1例（3%）无分支；第3组：至尾状突右侧部分的分支；12例（37%）有1或2支，20例（63%）无分支。
