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. 2020 Feb 14;24(1):1–21. doi: 10.1007/s10120-020-01042-y

Table 1.

Stage grouping

M0 M1
N0 N(+) any N
Clinical stages (cTNM, cStage, to be decided based on preoperative imaging, staging laparoscopy findings and intraoperative findings)
 T1 (M, SM)/T2 (MP) I IIA IVB
 T3 (SS)/T4a (SE) IIB III
 T4b(SI) IVA
M0 M1
N0 N1 N2 N3a N3b any N
Pathological stages (pTNM, pStage, to be decided based on pathologic findings of the resected specimen)
T1a (M)/pT1b(SM) IA IB IIA IIB IIIB IV
T2 (MP) IB IIA IIB IIIA IIIB
T3 (SS) IIA IIB IIIA IIIB IIIC
T4a (S) IIB IIIA IIIA IIIB IIIC
T4b (SI) IIIA IIIB IIIB IIIC IIIC