[Curative resection of stage IV advanced gallbladder cancer following combined treatment with gemcitabine and CDDP]

A 74-year-old woman was referred to our hospital following the diagnosis of advanced gallbladder cancer with para-aortic lymph node metastasis. Combination treatment involving gemcitabine(1,000mg/m / 2 body surface area)and CDDP(50mg/ m2 body surface area)was initiated and repeated for 4 courses; gemcitabine was administrated on day 1 and day 8, whereas CDDP was administrated on day 8, followed by 1 week of no treatment. After 4 courses, abdominal computed tomography (CT)indicated a reduction in size of the main lesion and disappearance of para -aortic lymph nodes. The remarkable response to the chemotherapy, which resulted in tumor downstaging, enabled us to perform the curative surgery procedure. Thus, cholecystectomy with resection of the hepatic bed and lymph node dissection were performed. The resected specimens indicated papillary adenocarcinoma of the gallbladder infiltrating the muscular wall of the gallbladder. In addition, the resected para-aortic lymph nodes indicated hyalinization and fibrosis as a result of the chemotherapy. Moreover, the pericholedocal lymph nodes were necrotic and no viable tumor was noted, thus indicating the excellent response to the chemotherapy.