Tomioka Kodai, Murakami Masahiko, Saito Akira, Ezure Hiromitsu, Moriyama Hiroshi, Mori Ryoichi, Otsuka Naruhito
Department of Anatomy, Showa University School of Medicine.
Okajimas Folia Anat Jpn. 2016;92(3-4):49-52. doi: 10.2535/ofaj.92.49.
Knowledge of the anatomy of the stomach and its surrounding structures is essential for lymph node dissection. This is the first gross anatomical investigation of anastomosis variations in the gastroepiploic arteries (GEA). The aim of this study is to examine the anastomosis pattern of the right and left GEA (RGEA and LGEA, respectively).
Seventeen cadavers were dissected, and the anastomotic patterns of RGEA and LGEA were observed macroscopically.
The anastomotic patterns were classified into two groups. Type 1 had direct anastomosis (n = 16; 94.1%), whereas Type 2 had no anastomosis (n = 1; 5.9%). Formation of an arterial arch along the greater curvature was observed in twelve cases (70.6%), whereas four cases (23.5%) exhibited mesh-like anastomosis or narrow anastomotic branches.
Direct anastomoses were observed in almost all the cases. These results are significant, and may be useful in the classification of lymph nodes or speculation of cancer metastases.
了解胃及其周围结构的解剖知识对于淋巴结清扫至关重要。这是首次对胃网膜动脉（GEA）吻合变异进行的大体解剖学研究。本研究的目的是检查左右胃网膜动脉（分别为RGEA和LGEA）的吻合模式。
解剖17具尸体，宏观观察RGEA和LGEA的吻合模式。
吻合模式分为两组。1型为直接吻合（n = 16；94.1%），而2型无吻合（n = 1；5.9%）。12例（70.6%）观察到沿胃大弯形成动脉弓，而4例（23.5%）表现为网状吻合或狭窄的吻合分支。
几乎所有病例均观察到直接吻合。这些结果具有重要意义，可能有助于淋巴结分类或推测癌症转移情况。
