Gallbladder carcinosarcoma is a rare gastrointestinal tract malignant tumour, which contains both epithelial cancer component and mesenchymal sarcoma component. Because of its unique anatomic location and unspecific medical presentation, preoperative diagnosis is difficult. The prognosis of gallbladder carcinoma is poor with median survival time of 5.5 months. T- and N-staging system has no role in cancer prognostic stratification. Currently, we still have limited experience in managing this form of notorious cancer. Surgical resection is the common practice in treating gallbladder carcinoma though recurrence rate is high (80%). Here, we report a 59-year-old female with new diagnosed gallbladder carcinosarcoma. She was found to have a carcinosarcoma masse at gallbladder extending into proximal bile ducts with no metastatic lesion. She underwent a radical cholangiocholecystocholedochectomy and Roux-en-Y hepatocholangioduodenostomy. Postsurgery, she received six cycles of adjuvant chemotherapy consisting of oxaliplatin and 5-fluorouracil. She maintains in complete remission 6 months after adjuvant chemotherapy.
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