AUTHOR=Wang Haichen , Li Qinglin , Han Shaoqi , Tian Hu TITLE=Rare case report: primary small-cell neuroendocrine carcinoma of the gallbladder JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1524974 DOI=10.3389/fonc.2025.1524974 ISSN=2234-943X