International Journal of Surgical Oncology / 2011 / Article / Tab 3

Review Article

Lymph Node Dissection in Curative Gastrectomy for Advanced Gastric Cancer

Table 3

Extent of lymph node metastasis —Japanese classification and TNN classification.


category
Japanese classification (JC: 13th edition)TNM classification (6th edition)JC (14th edition)/TNM (7th edition)

N0No evidence of LN metastasisNo evidence of LN metastasisNo evidence of LN metastasis
N1Metastasis to only Group 1 LNMetastasis in 1 to 6 regional LNsMetastasis in 1 to 2 regional LNs
N2Metastasis to Group 2 LN, but no metastasis to Group 3 LN7–15 nodes3–6 nodes
N3Metastasis to Group 3 LN16 or more nodes7 or more nodes
N3a: 7–15 nodes
N3b: 16 or more nodes

LN: lymph node.

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