A case of celiacomesenteric trunk with some other arterial anomalies in a Japanese woman.

We found a case of multiple arterial anomalies in a Japanese female cadaver during a routine dissection course. In the present case, a combination of three arterial anomalies was recognized in the abdominal digestive organs: (i) a celiacomesenteric trunk; (ii) a right accessory hepatic artery; and (iii) a left colic artery arising from a portion corresponding to the superior mesenteric artery. The typical celiacomesenteric trunk can be regarded as a variation of the arterial convergence at its origins progressing further between the celiac trunk and the superior mesenteric artery. The celiacomesenteric trunk in the present case included the left colic artery, which is usually one branch of the inferior mesenteric artery. Previously, a case had been reported in which all three arteries supplying the abdominal digestive organs had converged into one trunk, the celiac-bimesenteric trunk. Therefore, the celiacomesenteric trunk in the present case showed an intermediate degree of arterial convergence between that of the typical celiacomesenteric trunk and the celiac-bimesenteric trunk.