| Resection of the massive small intestine, including choledochojejunostomy, was performed. |
| Therefore, resection of extrahepatic bile duct and choledochojejunostomy with lymph node dissection were performed on suspicion of solitary cholangiocarcinoma. |
| Reconstruction procedure was performed with the modified Child method, comprising pancreaticojejunostomy, choledochojejunostomy, and gastrojejunostomy. |
| A formal pancreaticoduodenectomy was performed with an end-to-end pancreaticojejunostomy, end-to-side choledochojejunostomy and an antrectomy with gastrojejunostomy. |
| Therefore, he underwent extrahepatic bile duct resection and choledochojejunostomy with lymph node dissection. |
