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Highlights • Pancreaticoduodenectomy is a difficult and challenging operation, and a gastric tube is frequently used for reconstruction after subtotal esophagectomy for esophageal cancer. • The right gastro-omental artery is important for supplying blood flow to the gastric tube. • Surgeries for pancreatic head tumors become incredibly difficult in patients who have undergone esophageal reconstruction with a gastric tube. • We describe successful arterial reconstruction using the middle colic artery in a patient who had undergone esophageal reconstruction with a gastric tube and whose right gastro-omental artery had been resected., Introduction There are no reports on vessel reconstruction of right gastro-omental artery deficits due to pancreatic tumor resection. Here, we describe successful arterial reconstruction using the middle colic artery in a patient who had undergone esophageal reconstruction with a gastric tube and whose right gastro-omental artery had been resected. Presentation of case A 70-year-old man underwent subtotal esophagectomy and reconstructive surgery with a retrosternal gastric tube for esophageal cancer. A follow-up computed tomography (CT) scan revealed a tumor on the pancreatic head that was adjacent to the right gastro-omental artery. Pancreaticoduodenectomy (PD) was subsequently performed. The gastro-omental artery was resected along with the tumor, creating a 7-cm deficit. The anastomosis was performed between the right branch of the middle colic artery and the distal end of the right gastro-omental artery. No complications that involved blood flow to the reconstructed esophagus were postoperatively observed. Four months after surgery, the blood flow to the gastric tube was confirmed by a contrast CT scan. Discussion We reconstructed the right gastro-omental artery using the middle colic artery, and not a vein graft, as that would have required vessel anastomosis at two locations. The middle colic artery branches on the posterior surface of the pancreas, which is located close to the right gastro-omental artery. Conclusion The middle colic artery provides sufficient blood supply to the pulled-up gastric tube. PD can be performed even in patients who have undergone esophageal reconstruction.