CLIN
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PATH
|
DEFINITIONS |
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PRIMARY TUMOR
(T) |
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TX |
Primary tumor cannot be assessed |
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T0 |
No evidence of primary tumor |
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|
Tis |
Carcinoma in situ: Intraepithelial
or invasion of lamina propria |
|
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T1 |
Tumor invades lamina propria or
submucosa |
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T2 |
Tumor invades muscularis propria
or subserosa |
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T3 |
Tumor penetrates serosa (visceral
peritoneum) without invasion of adjacent
stuctures |
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T4 |
Tumor invades adjacent structures |
| |
|
LYMPH NODE (N) |
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NX |
Regional lymph node(s) cannot be
assessed |
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N0 |
No regional lymph node metastasis |
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|
N1 |
Metastasis in perigastric lymph
node(s) within 3 cm of edge of primary tumors |
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N2 |
Metastasis in perigastric lymph
node(s) more than 3 cm from edge of primary
tumor, or in lymph nodes along left gastric,
common hepatic, splenic, or celiac arteries |
| |
|
DISTANT
METASTASIS (M) |
|
|
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MX |
Presence of distant metastasis
cannot be assessed |
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M0 |
No distant metastasis |
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M1 |
Distant metastasis |