Significance of Hepatectomy in Patients Diagnosed With T2 Gallbladder Cancer

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Background:A radical surgery is mandatory for advanced gallbladder cancer. However, the appropriate surgical procedure for T2 gallbladder cancer remains controversial because of the difficulty associated with accurate preoperative diagnosis. The aims of the study were to analyze the clinicopathologic features of patients diagnosed with T2 gallbladder cancer and to identify the survival benefit of hepatectomy for such cases.Methods:Eighty-four patients, who were diagnosed with pT2 gallbladder cancer from January 1995 to December 2012, were included in this study. Patients were divided into nonhepatectomy and hepatectomy groups.Results:Partial hepatectomies were performed in 36 of 84 patients (42.9%). A significant difference in age was observed between the nonhepatectomy and hepatectomy groups (P=0.027). However, no significant differences were observed in sex, tumor size, or pathologic outcome between the 2 groups. No significant difference in survival rate was observed between the 2 groups (5-year survival rate, 60.4% vs. 66.6%). Of the 23 patients who underwent cholecystectomy, 11 (47.8%) were treated with extended surgery as a second operation with curative intent. No remnant tumor was detected at the hepatectomy site in any patient. However, the second operation revealed lymph node metastasis in 2 patients (18.2%). In terms of recurrence, 8 patients (34.7%) had hepatic metastasis. However, the metastatic tumor was away from the resection margin. No significant difference in survival rate was found between the peritoneal and the hepatic side groups (5-year survival rate, 62.5% vs. 73.0%).Conclusions:Hepatectomy is not associated with a better survival rate after surgery for T2 gallbladder cancer. Moreover, no recurrence near the gallbladder fossa is observed. In case of T2 gallbladder cancer confirmed by first operation, however, a second operation should be recommended on the basis of accurate nodal staging and additional therapy.

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