[A case of liver metastatic recurrence of bile duct cancer completely responding to single-drug S-1 chemotherapy].

: A 65-year-old man with common bile duct cancer was treated by pylorus-preserving pancreaticoduodenectomy with D2 lymph node dissection. Three months after surgery, tumor marker was increasing, and CT demonstrated multiple liver metastatic tumors. Single drug chemotherapy with S-1(100 mg/body/day)was administered. After 6 months, the liver metastatic tumors could not be visualized by CT. S-1 may be the chemotherapy of choice for recurrence of bile duct cancer.