1. Case 1

4. Diagnosis : Stomach, resection margin, proximal, FS-1, biopsy: No tumor Stomach, resection margin, distal, FS-2, biopsy: Adenocarcinoma Lymph node, #4, FS-3, biopsy: No tumor (0/1)

11. Diagnosis : Stomach, total gastrectomy: Adenocarcinoma, poorly differentiated 1) Location: Body, posterior wall 2) Tumor gross type: Early gastric carcinoma, type IIb 3) Histologic type by Lauren classification: Diffuse 4) Tumor size: 2.5 cm x 1.2 cm x0.3 cm 5) Depth of invasion: Tumor invades lamina propria (pT1a) 6) Margins of resection: No tumor identified at proximal and distal resection margins (safety margin: proximal 4.40 cm, distal 12.0 cm) 7) Lymphatic invasion: Not identified 8) Vascular invasion: Not identified 9) Regional lymph nodes: No metastasis in 22 regional lymph nodes ( 0/22, pN0)

12. Case 2

15. Diagnosis : Stomach, low body, lesser curvature, endoscopic biopsy: Signet ring cell carcinoma

16. Case 3

20. Diagnosis :Stomach, body, greater curvature, endoscopic biopsy: Adenocarcinoma, poorly differentiated