Gastric cancer. EndoTODAY

[Gastric cancer 825. Air expansion]

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Air expansion is very important to evaluate the cancer lesion.

outside endoscopy. left: before air expansion, right: after air expansion
repeated endoscopy after referral. after full air expansion
Stomach, subtotal gastrectomy: Early gastric carcinoma
1. Location : lower third, center at antrum and greater curvature
2. Gross type : EGC type IIa+IIc
3. Histologic type : tubular adenocarcinoma, poorly (solid) differentiated
4. Histologic type by Lauren : intestinal
5. Size : 2x1.5 cm
6. Depth of invasion : invades mucosa (muscularis mucosae) (pT1a)
7. Resection margin: free from carcinoma, safety margin: proximal 11 cm, distal 4.5 cm
8. Lymph node metastasis : no metastasis in 42 regional lymph nodes (pN0) (0/42: "3", 0/17; "4", 0/10; "5", 0/1; "6", 0/3; "7", 0/4; "9", 0/1; "8a", 0/1; "11p", 0/1; "12a", 0/1; "4sb", 0/2; "1", 0/1)
9. Lymphatic invasion : not identified
10. Venous invasion : not identified
11. Perineural invasion : not identified
12. AJCC stage by 8th edition: pT1a N0