Abstract
Although the dorsal pancreatic artery (DPA) is an important artery that supplies the pancreas, its morphology has not been sufficiently studied. We investigated the morphology of the DPA and the progression of pancreatic cancer along this vessel. Overall, 142 patients with pancreatic cancer who underwent surgical resection at Kanazawa University Hospital between 2004 and 2015 were enrolled. We examined the morphology of the DPA using preoperative computed tomography and cancer progression along the DPA using resected specimens. We investigated the anatomical structures surrounding the DPA through cadaveric examination. The analysis of computed tomography images revealed the presence of the DPA in 141 patients. In typical cases, the DPA divides into a head and a body branch. Histopathological examination revealed cancer progression along the DPA in 32 patients. Cancer progression along the DPA was identified as a factor associated with a poor prognosis in pancreatic head or body cancer. Cadaveric examination showed the presence of abundant nerve and lymphatic tissues along the DPA. It is important to remove the soft tissue surrounding the DPA during surgery for pancreatic head or body cancer because it may serve as an important route for cancer progression.
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