The Japanese Gastric Cancer Association guideline sets the criteria for endoscopic resection, the extent of gastrectomy and lymph node dissection, adjuvant chemotherapy by stage and systemic therapy for advanced disease, and is the reference for early gastric cancer worldwide.
Sixth edition of the Japanese guideline covering absolute and expanded indications for endoscopic submucosal dissection, eCura assessment of curability, surgical procedures and D1+ or D2 lymphadenectomy, laparoscopic and robotic surgery, adjuvant S-1-based chemotherapy, perioperative therapy, and first- to third-line systemic therapy for unresectable disease.
The early gastric cancer page's endoscopic criteria and surgical recommendations follow this guideline.