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Article Abstract
Background: Anomalous biliopancreatic junction (ABPJ) is a risk factor for gallbladder cancer (GBC). This study investigated the significance of ABPJ in patients with GBC.
Methods: Of the 453 patients with GBC underwent surgery at Seoul National University Hospital between 2000 and 2014, the 401 patients who can be assessed for the presence of ABPJ with radiologic image were analyzed.
Results: The 401 patients with GBC included 183 (45.6 %) males and 218 (54.4 %) females. ABPJ was identified in 69 (17.2 %) patients, 22 (31.9 %) males and 47 (68.1 %) females. Choledochal cyst (CC) was identified in 18 (4.5 %) patients, all of whom had ABPJ. Curative surgery was accomplished in 68.1 %. A comparison of patients with and without ABPJ showed that mean age (59.9 vs. 65.1 years, p < 0.001) and association with gallbladder stone (8.7 vs. 24.7 %, p = 0.002) were significantly lower in the ABPJ group, while the proportion of female (68.1 vs. 51.5 %, p = 0.012), bile duct resection rate (47.8 vs. 18.4 %, p < 0.001), and curative resection rate (81.1 vs. 65.7 %, p = 0.003) were significantly higher in the ABPJ group. Overall 5-year survival rates were similar in the ABPJ and non-ABPJ groups (74.4 vs. 69.0 %, p = 0.533). In patients with ABPJ, the presence of CC did not have a significant effect on survival (p = 0.099).
Conclusions: ABPJ was found in 17.2 % of patients with GBC. ABPJ is associated with younger age, female gender, absence of gallbladder stones, higher BDR rate, and higher curative resection rate. However, neither ABPJ nor CC was prognostic of survival in curatively treated patients with GBC.
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