%0 Journal Article
%T Comparison of the 11 th  Japanese classification and the AJCC 7 th  and 8 th  staging systems in esophageal squamous cell carcinoma patients
%A Dae Joon Kim
%A Go Eun Byun
%A Jee Won Suh
%A Seong Yong Park
%J SCIE-indexed Journal
%D 2018
%R 10.21037/jtd.2018.07.48
%X Staging systems for cancer are essential for determining treatment plans, communicating among medical personnel, and accurately predicting survival. A widely accepted and used cancer staging system is the tumor, node, and metastasis (TNM) system. The TNM system describes the anatomical extent of disease based on assessment of three components: T is the extent of the primary tumor, N is the absence or presence and extent of regional lymph node metastasis, and M is the absence or presence of distant metastasis. The American Joint Committee on Cancer (AJCC)/Union for International Cancer Control (UICC) system is based on the TNM descriptor and has been adopted worldwide. For esophageal cancer, the 7th edition of the AJCC staging system for esophageal cancer was published in 2009 based on a Worldwide Esophageal Cancer Collaboration (WECC) database (1) and 8th edition of the AJCC/UICC system was published in 2017. In addition to the AJCC system, Japan has its own esophageal cancer staging system. The current Japanese staging system is the 11th edition of the Japanese classification for esophageal cancer, based on a comprehensive esophageal cancer registry in Japan (2). Compared to the AJCC system, the Japanese classification has a different lymph node mapping system for esophageal cancer and different definitions of N staging and stage grouping compared to the AJCC system. The Japanese classification reflects the extensive experiences of Japanese surgeons who have performed uniform operations for esophageal cancer. The AJCC system is based on a worldwide international database and novel statistical methods
%U http://jtd.amegroups.com/article/view/22694/html