Yamasaki M, Nakao T, Ishizawa A, Ogawa R
Department of Anatomy, Akita University School of Medicine, Japan.
Anat Anz. 1990;171(5):343-9.
The case in which the inferior mesenteric artery (MI) arose from superior one (MS), the common mesenteric artery (MC) of Kitamura et al. (1987), was observed in a 61-year-old female cadaver. This is the 6th report on this anomaly and the only one on the female. The MS arising normally from abdominal aorta sent the MI as the first colic artery, this condition being common in 4 among 5 cases of this anomaly. The MI, however, did not send left colic artery (CS) which arose from a common trunk with right (CD) and middle colic (CM) arteries, which pattern has not been reported. 3 cases of this anomaly may be led from either of 3 kinds of intermesenteric artery (IM) reported by Williams and Klop (1957); the actual IM, an anastomotic artery between CM and CS and the one between MS and CS. The present case is extremely rare, being a compound type led from the first 2 IMs and another case with the common trunk composed of CM and CD, the last of which is collected in Lippert and Pabst (1985). From these examination, formation of MC is discussed with special reference to the inferior pancreatico-duodenal artery.
在一名61岁女性尸体上观察到了肠系膜下动脉（MI）起自肠系膜上动脉（MS）的情况，即北村等人（1987年）所描述的共同肠系膜动脉（MC）。这是关于这种异常情况的第6份报告，也是唯一一份关于女性的报告。正常发自腹主动脉的MS发出MI作为第一结肠动脉，这种情况在该异常的5例中有4例较为常见。然而，MI并未发出与右结肠动脉（CD）和中结肠动脉（CM）共干发出的左结肠动脉（CS），这种模式此前未见报道。这种异常情况的3例可能源自威廉姆斯和克洛普（1957年）报道的3种肠系膜间动脉（IM）中的任何一种；实际的IM、CM与CS之间的吻合动脉以及MS与CS之间的吻合动脉。本病例极为罕见，是由前两种IM导致的复合型，还有一例是由CM和CD组成的共干，最后这例收录于利珀特和帕布斯特（1985年）的文献中。通过这些检查，特别参照胰十二指肠下动脉对MC的形成进行了讨论。
