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Abstract  A 69-year-old man diagnosed as having gallbladder cancer with liver invasion and metastasis to Couinaud’s hepatic segment 8 (S8) was referred to our hospital. Because of the presence of liver metastasis, gemcitabine administration was chosen. Although gemcitabine was effective for the liver metastasis, his serum carcinoembryonic antigen (CEA) level had gradually increased after 12 cycles of gemcitabine administration. There was no distant metastasis other than the liver metastasis (manageable with gemcitabine) on detailed radiological examination. Therefore, we performed surgery for the primary lesion, after obtaining informed consent. Pathological examination demonstrated viable cancer cells with necrosis and fibrosis in the gallbladder, and fibrosis without viable cancer cells in the induration in liver S8. Gemcitabine was re-administered as postoperative adjuvant chemotherapy. Twenty months after the surgery, there was no sign of recurrence. In selected patients, gemcitabine treatment may be effective against gallbladder cancer with metastasis. [ABSTRACT FROM AUTHOR]