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  • Title: Prognostic heterogeneity of the seventh edition of UICC Stage III gallbladder carcinoma: Which patients benefit from surgical resection?
    Author: Sakata J, Kobayashi T, Ohashi T, Hirose Y, Takano K, Takizawa K, Miura K, Ishikawa H, Toge K, Yuza K, Soma D, Ando T, Wakai T.
    Journal: Eur J Surg Oncol; 2017 Apr; 43(4):780-787. PubMed ID: 28132788.
    Abstract:
    BACKGROUND: This study sought to evaluate the prognostic heterogeneity of Stage III (Union for International Cancer Control, seventh edition) gallbladder carcinoma. METHODS: Of 175 patients enrolled with gallbladder carcinoma who underwent radical resection, 22 were classified with Stage IIIA disease (T3N0M0) and 46 with Stage IIIB disease (T2N1M0 [n = 23] and T3N1M0 [n = 23]). The median number of retrieved lymph nodes per patient was 18. RESULTS: This staging system failed to stratify outcomes between Stages IIIA and IIIB; survival after resection was better for patients with Stage IIIB disease than for patients with Stage IIIA disease, with 5-year survival of 54.9% and 41.0%, respectively (p = 0.366). Multivariate analysis for patients with Stage III disease revealed independently better survival for patients with T2N1M0 than for patients with T3N0M0 (p = 0.016) or T3N1M0 (p = 0.001), with 5-year survival of 77.0%, 41.0%, and 31.0%, respectively. When N1 status was subdivided according to the number of positive nodes, 5-year survival in patients with T2M0 with 1-2 positive nodes, T2M0 with ≥3 positive nodes, T3M0 with 1-2 positive nodes, and T3M0 with ≥3 positive nodes was 83.3%, 50.0%, 45.8%, and 0%, respectively (p < 0.001). CONCLUSIONS: The prognosis of T2N1M0 disease was better than that of T3N0/1M0 disease, suggesting that not all node-positive patients will have uniformly poor outcomes after resection of gallbladder carcinoma. T2M0 with 1-2 positive nodes leads to a favorable outcome after resection, whereas T3M0 with ≥3 positive nodes indicates a dismal prognosis.
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