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🌱 來自: gastric cancer
AJCC TNM Pathologic Staging-of-gastric cancer
| Stage | TNM Criteria |
|---|---|
| IA, IB | T1N0, T2N0 |
| IIA | T1 N1-3, T2 N1-3, T3 N0 |
| IIB | T1 N3a T3 N1, T2 N2 T4a N0 |
| IIIA | T2 N3a T4a N1-2, T3 N2 T4b N0 |
| IIIB | T1-2 N3b T4b N1-2, T3-4a N3a |
| IIIC | T3-4b N3b, T4b N3a |
| IV | Any T, Any N, M1 |
AJCC TNM Categories
T = depth of tumor invasion
- T1
- Lamina propria, muscularis mucosae, or submucosa
- T2
- Muscularis propria
- T3
- Subserosal connective tissue w/o invasion visceral peritoneum, adj. structure
- T4
- Serosa/visceral peritoneum (a) or adj. structures (b)
N = number positive regional LN
- N1-2
- 1-2 LN (N1) or 3-6 LN (N2)
- N3
- 7-15 LN (a) or ≥16 LN (b)