Large cell neuroendocrine carcinoma (LCNEC) of the gallbladder is extremely rare and usually combined with other type of malignancy, mostly adenocarcinoma. We report an unusual case of combined adenosquamous carcinoma and LCNEC of the gallbladder in a 54-year-old woman. A radical cholecystectomy specimen revealed a 4.3×4.0 cm polypoid mass in the fundus with infiltration of adjacent liver parenchyma. Microscopically, the tumor consisted of two distinct components. Adenosquamous carcinoma was predominant and abrupt transition from adenocarcinoma to squamous cell carcinoma was observed. LCNEC showed round cells with large, vesicular nuclei, abundant mitotic figures, and occasional pseudorosette formation. The patient received adjuvant chemotherapy. However, multiple liver metastases were identified at 3-month follow-up. Metastatic nodules were composed of LCNEC and squamous cell carcinoma components. Detecting LCNEC component is important in gallbladder cancer, because the tumor may require a different chemotherapy regimen and show early metastasis and poor prognosis.
Citations
Citations to this article as recorded by
Does the size of the neuroendocrine-carcinoma component determine the prognosis of gallbladder cancer? Ya-Fei Hu, Jun-Ke Wang, Wen-Jie Ma, Hai-Jie Hu, Han-Fei Gu, Fei Liu, Tian-Run Lv, Si-Qi Yang, Yu-Shi Dai, Rui-Qi Zou, Yan-Wen Jin, Fu-Yu Li Frontiers in Endocrinology.2024;[Epub] CrossRef
Az epehólyag adenosquamosus daganata Fanni Hegedűs, Anita Sejben Orvosi Hetilap.2024; 165(49): 1945. CrossRef
Comparison of Metastatic Patterns Among Neuroendocrine Tumors, Neuroendocrine Carcinomas, and Nonneuroendocrine Carcinomas of Various Primary Organs Hyung Kyu Park, Ghee Young Kwon Journal of Korean Medical Science.2023;[Epub] CrossRef
Clinical features and outcomes analysis of Gallbladder neuroendocrine carcinoma Man Jiang, Yijing Zhang Journal of Cancer Research and Therapeutics.2023; 19(4): 910. CrossRef
Primary mixed large cell neuroendocrine carcinoma and adenocarcinoma of the gallbladder: A case report and literature review Tingting Yu, Shike Li, Zhuo Zhang Asian Journal of Surgery.2022; 45(11): 2336. CrossRef
Mixed neuroendocrine-non-neuroendocrine neoplasm of the gallbladder: case report and literature review Xu Ren, Hong Jiang, Kan Sun, Xufu Qin, Yongping Qu, Tian Xia, Yan Chen Diagnostic Pathology.2022;[Epub] CrossRef
Neuroendocrine Neoplasms of the Gallbladder: A Clinicopathological Analysis of 13 Patients and a Review of the Literature Pengyan Wang, Jingci Chen, Ying Jiang, Congwei Jia, Junyi Pang, Shan Wang, Xiaoyan Chang, Oronzo Brunetti Gastroenterology Research and Practice.2021; 2021: 1. CrossRef
Gallbladder Mixed Neuroendocrine-Non-neuroendocrine Neoplasm (MiNEN) Arising in Intracholecystic Papillary Neoplasm: Clinicopathologic and Molecular Analysis of a Case and Review of the Literature Amedeo Sciarra, Edoardo Missiaglia, Mounir Trimech, Emmanuel Melloul, Jean-Philippe Brouland, Christine Sempoux, Stefano La Rosa Endocrine Pathology.2020; 31(1): 84. CrossRef
Mixed neuroendocrine-non-neuroendocrine carcinoma of gallbladder: case report Adam Skalický, Lucie Vištejnová, Magdaléna Dubová, Tomáš Malkus, Tomáš Skalický, Ondřej Troup World Journal of Surgical Oncology.2019;[Epub] CrossRef
Unexpected intraoperative finding of a hyalinizing cholecystitis in a patient with gallbladder calculi Klaudia Gjinoska, Andrej Nikolovski, Emil Stoicovski, Zan Mitrev Journal of Surgical Case Reports.2024;[Epub] CrossRef
Gallbladder Carcinoma and Its Differential Diagnosis at MRI: What Radiologists Should Know Camila Lopes Vendrami, Michael J. Magnetta, Pardeep K. Mittal, Courtney C. Moreno, Frank H. Miller RadioGraphics.2021; 41(1): 78. CrossRef
A simple method for diagnosing gallbladder malignant tumors with subserosa invasion by endoscopic ultrasonography Mitsuru Sugimoto, Hiroki Irie, Mika Takasumi, Minami Hashimoto, Yuka Oka, Tadayuki Takagi, Rei Suzuki, Naoki Konno, Hiroyuki Asama, Yuki Sato, Jun Nakamura, Tsunetaka Kato, Ryoichiro Kobashi, Yuko Hashimoto, Shigeru Marubashi, Takuto Hikichi, Hiromasa Ohi BMC Cancer.2021;[Epub] CrossRef
KRONİK KOLESİSTİTİN NADİR VE MALİGNİTE POTANSİYELİ YÜKSEK OLAN ALT TİPİ; HYALİNİZE KOLESİSTİT: OLGU SUNUMU Leymune PARLAK, Bahar MEMİŞ Balıkesir Medical Journal.2019; 3(3): 129. CrossRef