Surgical anatomy of the innervation of pylorus in human and Suncus murinus, in relation to surgical technique for pylorus-preserving pancreaticoduodenectomy

Figure 4 An example of innervation in the posterior part of the pylorus. The stomach was raised. The nerves originating from the right gastroepiploic artery (RGEA) or the gastroduodenal artery (GDA) running along the retroduodenal artery (RDA) (white arrow) or the infrapyloric artery (IPyA) (white arrowhead) reached the first duodenum posterior part and the pylorus of the posterior part.