539 / 1084
STOMACH 8
TH
EDITION - AJCC
Primary Tumor
Regional Lymph Nodes
■
TX
Primary tumour cannot be
assessed
■
T0
No evidence of primary tumour
■
Tis
Carcinoma in situ
■
T1
Lamina propria or submucosa̶
T1a Lamina propria or muscularis
■
NX
Lymph nodes cannot be
assessed
■
N0
No regional lymph node
metastasis
■
N1
1 to 2 regional lymph nodes
■
Distant Metastasis̶
mucosae̶
T1b Submucosa
■
T2
Muscularis propria
■
T3
Subserosa
■
T4 Adjacent structures̶
T4a
Perforates serosa̶
T4b
Other adjacent structures
N2
3 to 6 nodes
■
N3
≥ 7 nodes̶
N3a
7 to 15 nodes ̶
N3b
≥16 nodes
■
M0
No distant metastasis
■
M1
Distant metastasis