Abstract：
The middle colic artery usually arises from the superior mesenteric artery, but in rare cases it may arise from the coeliac trunk or its branches. The aim of this study was to investigate variant origins of the middle colic artery on computed tomography and anatomical dissection. Variant middle colic arteries were identified on computed tomography as part of an ongoing study investigating anatomical variations of vessels of the upper abdomen. Three-dimensional reconstructions were made to demonstrate the variant findings. Cadaveric dissections were performed as part of a routine dissection course. We report five cases of rare variant origins of the middle colic artery arising from the coeliac axis. Among these sites of origin were the coeliac trunk, the gastrosplenic trunk, the splenic artery, and the common hepatic artery. Four cases were identified on multi-detector computed tomography and one in a cadaver. In all cases, the vessels passed posterior to the body of the pancreas before entering the transverse mesocolon. Knowledge of middle colic artery variations is important to prevent inadvertent injury in digestive surgery, especially in the hepatopancreatic area. Variant origins of the middle colic artery are rare, and their knowledge is crucial to prevent unnecessary iatrogenic injury during abdominal surgery.
摘要：
中绞痛动脉通常来自肠系膜上动脉，但在极少数情况下，它可能来自腹腔干或其分支。这项研究的目的是在计算机断层扫描和解剖解剖上研究中绞痛动脉的变异起源。作为正在进行的研究上腹部血管解剖变化的一部分，在计算机断层扫描中发现了变异的中绞痛动脉。进行了三维重建以证明变体发现。尸体解剖是常规解剖过程的一部分。我们报告了5例由腹腔轴引起的中绞痛动脉的罕见变异起源。这些产地包括乳糜泻躯干,胃脾干,脾动脉,和肝总动脉.在多探测器计算机断层扫描中发现了4例，在尸体中发现了1例。在所有情况下,在进入横结肠系膜之前，血管通过胰体的后方。了解中绞痛动脉变异对于防止消化外科中的意外损伤很重要。尤其是在肝胰腺区域。中绞痛动脉的变异起源很少，他们的知识对于防止腹部手术中不必要的医源性损伤至关重要。
