Clinicopathological Features of Gallbladder Papillary Adenocarcinoma

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Clinicopathological Features of Gallbladder Papillary Adenocarcinoma

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Title: Clinicopathological Features of Gallbladder Papillary Adenocarcinoma
Author: Wan, Xueshuai; Zhang, Haohai; Chen, Cuimin; Yang, Xiaobo; Wang, Anqiang; Zhu, Chengpei; Fu, Lilan; Miao, Ruoyu; He, Lian; Yang, Huayu; Zhao, Haitao; Sang, Xinting

Note: Order does not necessarily reflect citation order of authors.

Citation: Wan, X., H. Zhang, C. Chen, X. Yang, A. Wang, C. Zhu, L. Fu, et al. 2014. “Clinicopathological Features of Gallbladder Papillary Adenocarcinoma.” Medicine 93 (27): e131. doi:10.1097/MD.0000000000000131.
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Abstract: Abstract Although patients with gallbladder papillary adenocarcinoma (GBPA) appear to have better prognoses than patients with other pathological subtypes of gallbladder carcinoma (GBC), the clinicopathological features and outcomes of GBPA have not been fully explored. This study therefore analyzed the clinicopathological characteristics and outcomes of GBPA. This study included 16 patients with GBPA and 101 with gallbladder adenocarcinoma (GBA) not otherwise specified (NOS), all diagnosed pathologically after surgical resection. Clinicopathological and survival data were retrospectively collected and compared. Fever was significantly more common in GBPA (7/16 vs 10/101; P = 0.000). Serum carbohydrate antigen 19-9 level was increased in 1 of 9 patients with GBPA and 39 of 76 with GBA (P = 0.022). More patients with GBPA underwent curative resection (15/16 vs 54/101; P = 0.009). Pathologically, patients with GBPA were at much earlier tumor (T) (4 in situ, 8 T1; P = 0.000) and Tumor, Node, Metastases (TNM) stages (P = 0.000). The overall 1-, 3-, and 5-year survival rates were significantly higher in patients with GBPA (100%, 76.9%, and 76.9%, respectively), than in patients with GBA (72.2%, 38.8%, and 31.0%, respectively; P = 0.001). Preoperative jaundice (odds ratio 7.69; 95% confidence interval, 1.53–38.76; P = 0.013) was a significant prognostic factor in patients with GBA, but was no longer significant when the patients with GBA and GBPA were pooled together. The clinicopathological features of patients with GBPA differed from those in patients with GBA (not otherwise specified). Pooling of patients may mask prognostic factors in each group.
Published Version: doi:10.1097/MD.0000000000000131
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