Table 1.
Lymph node grouping for gastric cancer patients by anatomic location of tumor according to the 13th edition of the JCGC and clinical practices in our center
| LN station | Grouping of the perigastric LNs | |||
|---|---|---|---|---|
| Overall | Distal | Middle | Upper | |
| No. 1 | Group 1 | Group 2 | Group 1 | Group 1 |
| No. 2 | Group 1 | Distant metastasis | Group 1 | Group 1 |
| No. 3 | Group 1 | Group 1 | Group 1 | Group 1 |
| No. 4 | Group 1 | Group 1 | Group 1 | Group 1 |
| No. 5 | Group 1 | Group 1 | Group 1 | Distant metastasis |
| No. 6 | Group 1 | Group 1 | Group 1 | Distant metastasis |
| No. 7 | Group 2 | Group 2 | Group 2 | Group 2 |
| No. 8 | Group 2 | Group 2 | Group 2 | Group 2 |
| No. 9 | Group 2 | Group 2 | Group 2 | Group 2 |
| No. 10 | Group 2 | Distant metastasis | Group 2 | Group 2 |
| No. 11 | Group 2 | Group 2 | Group 2 | Group 2 |
| No. 12 | Group 2 | Group 2 | Group 2 | Group 3 |
| No. 13a | Group 3 | Group 3 | Group 3 | Distant metastasis |
Group 1 and 2 LNs were classified according to the 13th edition of the Japanese Classification of Gastric Carcinoma
LN lymph node, JCGC Japanese Classification of Gastric Carcinoma
aLNs beyond No. 13 station were all defined as Group 3 LNs or distant metastasis