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Stomach, endoscopic submucosal dissection:
Early gastric carcinoma
1. Location : antrum, lesser curvature
2. Gross type : EGC type IIa
3. Histologic type : tubular adenocarcinoma, moderately differentiated >> papillary adenocarcinoma, moderately differentiated (about 35%)
4. Histologic type by Lauren : intestinal
5. Size of carcinoma : (1) longest diameter, 32mm (2) vertical diameter, 15mm
6. Depth of invasion : invades mucosa (lamina propria) (pT1a)
7. Resection margin : free from carcinoma(N) safety margin : distal 6 mm, proximal 10 mm, anterior 12 mm, posterior 14 mm
8. Lymphatic invasion : not identified(N)
9. Venous invasion : not identified(N)
10. Perineural invasion : not identified(N)
11. Microscopic ulcer : absent
12. Hstologic heterogeneity: absent
13. Associated findings: gastritis cystica profunda

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