Pyloric ring cancer. 유문암. EndoTODAY 이준행

[Gastric cancer 838. Pyloric ring cancer. 유문암. 날문암]

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Pyloric ring cancer is sometimes difficult to find in its' early stage. It can be long and slender.

Stomach, radical subtotal gastrectomy: Early gastric carcinoma
1. Location : lower third, Center at pylorus and greater curvature
2. Gross type : EGC type IIc
3. Histologic type : signet-ring cell carcinoma
4. Histologic type by Lauren : diffuse
5. Size : 5.0x0.5 cm
6. Depth of invasion : invades mucosa (lamina propria) (pT1a)
7. Resection margin: free from carcinoma: safety margin: proximal 10.0 cm, distal 0.8 cm
8. Lymph node metastasis : no metastasis in 32 regional lymph nodes (pN0) (0/32: "3.5", 0/8; "4.6", 0/2; "1", 0/2; "5", 0/0; "6", 0/5; "7", 0/5; "9", 0/1; "8a", 0/3; "11p", 0/2; "12a", 0/4; "4sb", 0/0)
9. Lymphatic invasion : not identified
10. Venous invasion : not identified
11. Perineural invasion : not identified
12. AJCC stage by 8th edition: pT1a N0