Stomach cancer staging: Difference between revisions

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__NOTOC__
__NOTOC__
{{CMG}}{{AE}}{{PSD}}
{{CMG}}{{AE}}{{PSD}}
{{Stomach cancer}}
{{Stomach cancer}}
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The American Joint Committee on Cancer has designated staging by TNM classification to define gastric cancer
The American Joint Committee on Cancer has designated staging by TNM classification to define gastric cancer
===Definitions of TNM===
===Definitions of TNM===
====Primary tumor====
*TX: [[Primary tumor]] cannot be assessed
*T0: No evidence of [[primary tumor]]
*Tis: Carcinoma in situ: intraepithelial [[tumor]] without invasion of the [[lamina propria]]
*T1: [[Tumor]] invades [[lamina propria]], [[muscularis mucosae]], or [[submucosa]]
*T1a: [Tumor]] invades [[lamina propria]] or [[muscularis mucosae]]
*T1b: [[Tumor]] invades [[submucosa]]
*T2: [[Tumor]] invades [[muscularis propria]]
*T3: [[Tumor]] penetrates subserosal [[connective tissue]] without invasion of [[visceral peritoneum]] or adjacent structures
*T4: [[Tumor]] invades [[serosa]] (visceral peritoneum) or adjacent structures
*T4a: [[Tumor]] invades [[serosa]] (visceral peritoneum)
*T4b: [[Tumor]] invades adjacent structures
====Regional Lymph Nodes====
*NX: Regional [[lymph node]](s) cannot be assessed
*N0: No regional [[lymph node]] [[metastasis]]
*N1: Metastases in 1–2 regional [[lymph nodes]]
*N2: Metastases in 3–6 regional [[lymph nodes]]
*N3: Metastases in ≥7 regional [[lymph nodes]]
*N3a: Metastases in 7–15 regional [[lymph nodes]]
*N3b: Metastases in ≥16 regional [[lymph nodes]]
====Distant Metastasis====
*M0: No distant [[metastasis]]
*M1: Distant [[metastasis]]
===AJCC Stage Groupings===
====Stage 0====
*Tis, N0, M0
====Stage IA====
*T1, N0, M0
====Stage IB====
*T2, N0, M0
*T1, N1, M0
====Stage IIA====
*T3, N0, M0
*T2, N1, M0
*T1, N2, M0
====Stage IIB====
*T4a, N0, M0
*T3, N1, M0
*T2, N2, M0
*T1, N3, M0
====Stage IIIA====
*T4a, N1, M0
*T3, N2, M0
*T2, N3, M0
====Stage IIIB====
*T4b, N0, M0
*T4b, N1, M0
*T4a, N2, M0
*T3, N3, M0
====Stage IIIC====
*T4b, N2, M0
*T4b, N3, M0
*T4a, N3, M0
====Stage IV====
*Any T, Any N, M1 <ref>http://www.cancer.gov/types/stomach/hp/stomach-treatment-pdq#section/_17</ref>
{| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
{| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
|+'''''Adrenal cancer TNM staging'''''
|+'''''Stomach cancer TNM staging'''''
! style="background: #4479BA; width: 120px;" | {{fontcolor|#FFF|Stage}}
! style="background: #4479BA; width: 120px;" | {{fontcolor|#FFF|Stage}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|Description}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|Description}}
|-
|-
! style="background: #DCDCDC;" |TX
! style="background: #DCDCDC;" |TX
! style="background: #F5F5F5;" |Primary [[tumor]] cannot be assessed
! style="background: #F5F5F5;" |[[Primary tumor]] cannot be assessed
|-
!Tis
!Carcinoma in situ: intraepithelial [[tumor]] without invasion of the [[lamina propria]]
|-
|-
! style="background: #DCDCDC;" |T0
! style="background: #DCDCDC;" |T0
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|-
|-
! style="background: #DCDCDC;" |T1
! style="background: #DCDCDC;" |T1
! style="background: #F5F5F5;" |[[Tumor]] ≤5 cm in greatest dimension limited to the [[thyroid|adrenals]]
! style="background: #F5F5F5;" |[[Tumor]] invades [[lamina propria]], [[muscularis mucosae]], or [[submucosa]]
T1a: Tumor invades [[lamina propria]] or [[muscularis mucosae]]
 
T1b: [[Tumor]] invades [[submucosa]]
|-
|-
! style="background: #DCDCDC;" |T2
! style="background: #DCDCDC;" |T2
! style="background: #F5F5F5;" |[[Tumor]] >5 cm in greatest dimension, limited to the adrenals
! style="background: #F5F5F5;" |[[Tumor]] invades [[muscularis propria]]
|-
|-
! style="background: #DCDCDC;" |T3
! style="background: #DCDCDC;" |T3
! style="background: #F5F5F5;" |Tumor of any size with local invasion, but not invading adjacent organs
! style="background: #F5F5F5;" |[[Tumor]] penetrates subserosal [[connective tissue]] without invasion of [[visceral peritoneum|visceral peritoneum or adjacent structures]]
|-
|-
! style="background: #DCDCDC;" |T4
! style="background: #DCDCDC;" |T4
! style="background: #F5F5F5;" |Tumor of any size with invasion of adjacent organs
! style="background: #F5F5F5;" |T4: [[Tumor]] invades [[serosa]] (visceral peritoneum) or adjacent structures
 
T4a: [[Tumor]] invades [[serosa]] (visceral peritoneum)
 
T4b: [[Tumor]] invades adjacent structures
|}
|}


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|-
|-
! style="background: #DCDCDC;" |N1
! style="background: #DCDCDC;" |N1
! style="background: #F5F5F5;" |Regional [[lymph node]] metastasis
! style="background: #F5F5F5;" |Metastasis in 1-2 regional lymph nodes
|-
!N2
!Metastasis in 3-6 regional lymph nodes
|-
!N3
!Metastasis in seven or more regional lymph nodes
N3a: Metastasis in 7-15 regional lymph nodes
 
N3b: Metastasis in 16 or more regional lymph nodes
|}
|}


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{| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
{| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
|+'''''Anatomic Stage/Prognostic Groups'''''
|+'''''Anatomic Stage/Prognostic Groups'''''
! style="background: #4479BA; width: 120px;" | {{fontcolor|#FFF|Stage}}
! colspan="2" style="background: #4479BA; width: 120px;" | {{fontcolor|#FFF|Stage}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|T}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|T}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|N}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|N}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|M}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|M}}
|-
|-
! style="background: #DCDCDC;" |I
! colspan="2" |
! style="background: #F5F5F5;" |T1
====Stage 0====
 
!Tis
! style="background: #F5F5F5;" |N0
!N0
 
!M0
! style="background: #F5F5F5;" |M0
|-
! rowspan="3" |I
!Stage IA
!T1
!N0
!M0
|-
! rowspan="2" |Stage IB
!T2
!N0
!M0
|-
!T1
!N1
!M0
|-
! rowspan="6" |II
! rowspan="3" |Stage IIA
!T3
!N0
!M0
|-
!T2
!N1
!M0
|-
!T1
!N2
!M0
|-
! rowspan="3" |Stage IIB
!T4a
!N0
!M0
|-
!T3
!N1
!M0
|-
|-
! style="background: #DCDCDC;" |II
!T2
! style="background: #F5F5F5;" |T2
!N2
 
!M0
! style="background: #F5F5F5;" |N0
 
! style="background: #F5F5F5;" |M0
|-
|-


! style="background: #DCDCDC;" |III
! rowspan="8" style="background: #DCDCDC;" |III
!Stage IIIA
! style="background: #F5F5F5;" |T1
! style="background: #F5F5F5;" |T1
! style="background: #F5F5F5;" |N1
! style="background: #F5F5F5;" |N1
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|-
|-
 
! rowspan="4" |Stage IIIB
! style="background: #DCDCDC;" |
! style="background: #F5F5F5;" |T4b
! style="background: #F5F5F5;" |T2
! style="background: #F5F5F5;" |N0
! style="background: #F5F5F5;" |N1
! style="background: #F5F5F5;" |M0
! style="background: #F5F5F5;" |M0
|-
|-
 
!T4b
! style="background: #DCDCDC;" |
!N1
! style="background: #F5F5F5;" |T3
!M0
! style="background: #F5F5F5;" |N0
|-
! style="background: #F5F5F5;" |M0
!T4a
 
!N2
!M0
|-
!T3
!N3
!M0
|-
|-
 
! rowspan="3" |Stage IIIC
! style="background: #DCDCDC;" |IV
!T4b
! style="background: #F5F5F5;" |T3
!N2
! style="background: #F5F5F5;" |N1
!M0
! style="background: #F5F5F5;" |M0
|-
|-
!
!T4b
!T4
!N3
!N0
!M0
!M0
|-
|-
!
!T4a
!T4
!N3
!N1
!M0
!M0
|-
|-
!IV
!
!
!Any T
!Any T

Revision as of 15:41, 1 November 2017


Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]

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Overview

According to the American Joint Committee on Cancer, there are 4 stages of stomach cancer based on the tumor spread.

Staging

The American Joint Committee on Cancer has designated staging by TNM classification to define gastric cancer

Definitions of TNM

Stomach cancer TNM staging
Stage Description
TX Primary tumor cannot be assessed
Tis Carcinoma in situ: intraepithelial tumor without invasion of the lamina propria
T0 No evidence of primary tumor
T1 Tumor invades lamina propria, muscularis mucosae, or submucosa

T1a: Tumor invades lamina propria or muscularis mucosae

T1b: Tumor invades submucosa

T2 Tumor invades muscularis propria
T3 Tumor penetrates subserosal connective tissue without invasion of visceral peritoneum or adjacent structures
T4 T4: Tumor invades serosa (visceral peritoneum) or adjacent structures

T4a: Tumor invades serosa (visceral peritoneum)

T4b: Tumor invades adjacent structures

Regional Lymph Nodes (N)
Stage Description
NX Regional lymph node cannot be assessed
N0 No regional lymph node metastasis
N1 Metastasis in 1-2 regional lymph nodes
N2 Metastasis in 3-6 regional lymph nodes
N3 Metastasis in seven or more regional lymph nodes

N3a: Metastasis in 7-15 regional lymph nodes

N3b: Metastasis in 16 or more regional lymph nodes

Distant Metastasis (M)
Stage Description
M0 No distant metastasis
M1 Distant metastasis
Anatomic Stage/Prognostic Groups
Stage T N M

Stage 0

Tis N0 M0
I Stage IA T1 N0 M0
Stage IB T2 N0 M0
T1 N1 M0
II Stage IIA T3 N0 M0
T2 N1 M0
T1 N2 M0
Stage IIB T4a N0 M0
T3 N1 M0
T2 N2 M0
III Stage IIIA T1 N1 M0
Stage IIIB T4b N0 M0
T4b N1 M0
T4a N2 M0
T3 N3 M0
Stage IIIC T4b N2 M0
T4b N3 M0
T4a N3 M0
IV Any T Any N M1

References

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