Fig. 1

a The original pancreaticojejunostomy was dissected, and the posterior wall of the pancreaticojejunostomy did not need to be dissected completely (the blue oval area is the remnant pancreas, the white quadrilateral area is the jejunal input loop). b A wedge resection was made to cut out the stricture tissue and expose the dilated remnant main pancreatic duct, then the anterior wall of the main pancreatic duct was cut about 2.0 cm along the longitudinal direction (white arrow). c Interrupted suturing with absorbable stitch between the pancreatic parenchyma and the full thickness of the jejunal wall