Key updates and interpretation of the ninth version of AJCC staging system for neuroendocrine tumors of the stomach

VernacularTitle:美国癌症联合委员会第九版胃神经内分泌瘤分期系统更新要点及解读
Author: Di WU ¹ ; Zhengyao CHANG ; Tianyu XIE ; Kecheng ZHANG
Author Information

1. 解放军总医院第一医学中心胃部外科，北京　100853
Keywords: Neuroendocrine tumors of the stomach; American Joint Committee on Cancer; Staging system, version 9
From: Chinese Journal of Gastrointestinal Surgery 2024;27(7):734-739
CountryChina
Language:Chinese
Abstract: The cancer staging system of the American Joint Committee on Cancer (AJCC) is the most widely used clinical basis for tumor staging. In October 2023, AJCC released the staging system (ninth version) for the neuroendocrine tumors of stomach (NET), which has been implemented in January 2024. The ninth version of NET staging system mainly updated the histopathologic classification, diagnosis and staging methods, clinical and pathological staging, prognosis grade, tumor and non-tumor prognostic features. The update and implementation of the staging system provide a more detailed reference for the accurate diagnosis, staging and precise treatment of gastric neuroendocrine tumors. Moreover, it is convenient for clinicians to carry out clinical practice. The purpose of our article is to provide a high-level overview of the major changes in AJCC staging system (version 9) for gastric NET based on the latest evidence-based medical research.