Comparison of the Clinical Features and Outcomes of Gallbladder Neuroendocrine Carcinoma with Those of Adenocarcinoma: A Propensity Score-Matched Analysis
- Authors
- Do, Min-Young; Jang, Sung-Ill; Kang, Hua-Pyong; Kim, Eui-Joo; Lee, Kyong-Joo; Park, Go-Eun; Lee, Su-Jee; Lee, Dong-Ki; Woo, Sang-Myung; Cho, Jae-Hee
- Issue Date
- Sep-2021
- Publisher
- MDPI
- Keywords
- Adenocarcinoma; Gallbladder; Neuroendocrine carcinoma; Neuroendocrine neoplasm; Propensity score matching
- Citation
- Cancers, v.13, no.18
- Journal Title
- Cancers
- Volume
- 13
- Number
- 18
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82271
- DOI
- 10.3390/cancers13184713
- ISSN
- 2072-6694
- Abstract
- Neuroendocrine neoplasms (NENs) of the gallbladder (GB) are extremely rare. We aimed to compare the clinical features, disease progression, management, and prognosis of patients with GB-NENs with those of patients with GB-adenocarcinomas (ADCs). A total of 21 patients with GB-NENs and 206 patients with GB-ADCs, treated at three tertiary medical centers between January 2010 and December 2020, were enrolled. Of the 21 patients with GB-NENs, 20 were diagnosed with poorly differentiated small-cell neuroendocrine carcinomas (NECs), and 1 patient had large-cell NEC. All patients presented with advanced stages of cancer with extensive local extension and/or distant metastasis and non-specific symptoms. Tumor-node-metastasis stage IIIB and IV (A/B) tumors were found in 6 and 15 (1/14) patients, respectively. Nine patients with GB-NEC who underwent surgical resection had a significantly better progression-free survival (PFS) than those who did not undergo surgery. After a propensity score matching with a 1:1 ratio using the American Joint Committee on Cancer stage, age, sex, and operation status, 19 pairs of patients were included. Compared with stage-matched patients with GB-ADC, patients with GB-NEC had similar overall survival and PFS. However, as GB-NEC is rarely diagnosed early, further studies investigating methods for the early diagnosis and improvement in the survival of patients with GB-NEC are needed. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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