Stomach, endoscopic submucosal dissection: Early gastric carcinoma 1. Location : antrum, greater curvature 2. Gross type : EGC type IIc 3. Histologic type : tubular adenocarcinoma, well differentiated >> tubular adenocarcinoma, poorly differentiated (about 3%) 4. Histologic type by Lauren : intestinal 5. Size of carcinoma : (1) longest diameter, 30 mm (2) vertical diameter, 17 mm 6. Depth of invasion : invades mucosa (muscularis mucosa) (pT1a) 7. Resection margin : free from carcinoma(N) 8. Lymphatic invasion : not identified(N) 9. Venous invasion : not identified(N) 10. Perineural invasion : not identified(N) 11. Microscopic ulcer : absent 12. Histologic heterogeneity: absent