# Reconsidering the terminology of “early” and “advanced” gastric cancer: toward a harmonized global lexicon

## TL;DR

The paper suggests a new three-tier classification system for gastric cancer to reduce confusion in terminology between different regions.

## Contribution

The novel contribution is proposing a unified terminology system for gastric cancer stages that bridges Japanese and global clinical practices.

## Key findings

- Current terminology for advanced gastric cancer varies between regions, causing confusion.
- A three-tier system is proposed to harmonize terminology with global clinical staging and treatment goals.

## Abstract

The term early gastric cancer (EGC), defined as carcinoma confined to the mucosa or submucosa irrespective of lymph node status, has been widely accepted worldwide. In contrast, the terminology surrounding advanced gastric cancer remains inconsistent across regions. In Western oncology, “advanced cancer” often denotes unresectable or metastatic disease, whereas “early-stage cancer” may include resectable stage II–III tumors. This semantic discrepancy has led to confusion in international communication, clinical trials, and guideline interpretation. We propose a three-tier terminology—early gastric cancer, locally advanced gastric cancer, and advanced gastric cancer—to align the Japanese pathological concept with global clinical staging practice and therapeutic intent.