A marginal branch of the left hepatic artery running along the umbilical vein and supplying the anterior surface of the liver left lobe: a report of 5 cases in 12 Japanese human fetuses.

IF 1.4 Q3 ANATOMY & MORPHOLOGY Anatomy & Cell Biology Pub Date : 2023-12-31 Epub Date: 2023-09-15 DOI:10.5115/acb.23.091
Ji Hyun Kim, Shogo Hayashi, Gen Murakami, José Francisco Rodríguez-Vázquez, Hiroshi Abe
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Abstract

In human fetuses, the left hepatic artery (LHA) issues the marginal artery that runs along the umbilical vein and, sometimes, reaches the umbilicus. The further observation demonstrated that, in 5 of 12 Japanese midterm fetuses (crown-rump length mm: 46, 50, 54, 59, 102), the marginal artery issued not only a thin umbilical branch but also a liver parenchymal branch that took a posterosuperior recurrent course in a peritoneal fold and supplied the anterior surface of the liver left lobe (segment III). However, in 22 Spanish fetuses of which gestational ages corresponded to the Japanese ones, we did not find the parenchymal branch. Therefore, between human populations, there seemed to be a considerable difference in the incidence as to whether or not the marginal artery issues the liver parenchymal branch. The parenchymal branch might be degenerated at the later stages due to friction between the liver free surface and growing diaphragm.

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肝左动脉沿脐静脉的边缘分支供应肝左叶的前表面:12 个日本胎儿中 5 个病例的报告。
在人类胎儿中,肝左动脉(LHA)发出的边缘动脉沿着脐静脉运行,有时会到达脐部。进一步观察表明,在 12 个日本中期胎儿(冠臀长 mm:46、50、54、59、102)中,有 5 个胎儿的边缘动脉不仅发出一条细的脐支,而且还发出一条肝实质支,该肝实质支在腹膜皱褶中向后上方回流,供应肝左叶(第 III 段)的前表面。然而,在 22 个胎龄与日本胎儿一致的西班牙胎儿中,我们没有发现肝实质分支。因此,在不同人群中,边缘动脉是否发出肝实质分支的发生率似乎存在很大差异。肝实质分支可能在后期由于肝脏游离面与生长的膈肌之间的摩擦而退化。
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来源期刊
Anatomy & Cell Biology
Anatomy & Cell Biology ANATOMY & MORPHOLOGY-
CiteScore
1.80
自引率
9.10%
发文量
75
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