Hosokawa Y, et al. - The proximal dorsal jejunal vein (PDJV) and surgical outcomes in patients with pancreatic ductal adenocarcinoma (PDAC) with PDJV involvement (PDJVI). The PDJVs were classified into seven types depending on the position of the first and second jejunal veins relative to the superior mesenteric artery. For PDAC with PDJVI, pancreaticoduodenectomy with PDJV resection was feasible. With this procedure, satisfactory overall survival rates was achieved.