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左结肠动脉作为一个单干起自肠系膜上动脉的变异罕见。中国解剖学会体质调查组1986年出版的《中国人体质调查》一书中所收集五篇文献共722例标本中,尚未报道过这种变异。我们在一例男性成年尸体解剖时发现一例,报道如下:自肠系膜上动脉距起始部3.1cm处,发出左结肠动脉,外径2.6mm,与肠系膜上动脉的角度为90°,有同名静脉伴行于腹膜壁层后方行向左下分为升、降二支,分别与中结肠动脉和乙状结肠动脉吻合构成边缘动脉,其长度为5.4cm,分叉点距降结肠水平距离为4.7cm,供应结肠左曲和降结肠的血液(附图)。了解左结肠动脉的这一解剖变异特点,对临床结肠外
Left colic artery as a single stem from the superior mesenteric artery variation rare. The Chinese Anatomy Association Physical Survey Group published in 1986, “Chinese Physical Survey” a book collected in five articles a total of 722 specimens, this change has not been reported. We found an example of a male adult during autopsy, reported as follows: Since the superior mesenteric artery 3.1cm from the beginning of the Department, issued left colon artery, diameter 2.6mm, and the superior mesenteric artery angle of 90 °, the same name with the vein The line of the peritoneal parietal posterior left lower divided into ascending and descending two branches, respectively, and the middle of the colon and sigmoid colon anastomosis marginal artery, the length of 5.4cm, bifurcation point from the descending colon horizontal distance of 4.7cm, the supply of colon Left and descending colon blood (with photos). Understand the characteristics of this anatomical variation of the left colic artery, outside the clinical colon