5cm limina propria (LP) cancer

[Gastric cancer 890. 5cm limina propria (LP) cancer]

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Initial biopsy was "atypical cells, very focal, highly suspicious for adenocarcinoma (multiple rebiopsy is recommended." The biopsy result afte referral was "poorly cohesive carcinoma, signet ring cell type." Surgical consultation was done.

left: initial endoscopic image (Olympus), right: endoscopic image after referral (Pentax)
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 : 5.0x2.0 cm
6. Depth of invasion : invades mucosa (lamina propria) (pT1a)
7. Resection margin: free from carcinoma, safety margin: proximal 8.0 cm, distal 1.0 cm
8. Lymph node metastasis : no metastasis in 31 regional lymph nodes (pN0)
9. Lymphatic invasion : not identified
10. Venous invasion : not identified
11. Perineural invasion : not identified
12. AJCC stage by 8th edition: pT1a N0