Pancreatic Parenchymal Injection of N-butyl-2-cyanoacrylate

This procedure is integrated into the standard pancreaticoduodenectomy. Injection of Histoacryl® (n-butyl-2-cyanoacrylate) mixed with Lipiodol® (1:1 ratio) into the pancreatic parenchyma circumferentially (3, 6, 9, and 12 o'clock positions) around the main pancreatic duct (MPD) orifice, extending 5-8 mm deep and 5-10 mm laterally from the future anastomotic line, avoiding the main pancreatic duct and vessels. Total volume injected typically ranges from 0.2 ml to 0.6 ml. Follow with standard duct-to-mucosa pancreaticojejunostomy: * Tying down the posterior duct-to-mucosa sutures. * Placing and tying the anterior duct-to-mucosa sutures. * Tying down the posterior outer layer sutures. * Placing the anterior outer layer sutures. Meticulously avoid glue contact with sutures/mucosa Reconstruction: Complete the hepaticojejunostomy and duodenojejunostomy (or gastrojejunostomy).

Patients randomized to this group will undergo pancreaticoduodenectomy and pancreaticojejunostomy using the standard surgical technique of the institution, without the application of N-Butyl-2-Cyanoacrylate or any other sealant to the pancreatic anastomosis. No placebo injection will be administered.