Stomach cancer staging: Difference between revisions
No edit summary |
|||
Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
{{CMG}}; {{AE}} {{PSD}} {{MAD}} | {{CMG}}; {{AE}} {{PSD}} {{MAD}} | ||
{{Stomach cancer}} | {{Stomach cancer}} | ||
Line 31: | Line 32: | ||
|- | |- | ||
! style="background: #DCDCDC;" |T2 | ! style="background: #DCDCDC;" |T2 | ||
! style="background: #F5F5F5;" |[[Tumor]] invades | ! style="background: #F5F5F5;" |[[Tumor]] invades muscularis propria | ||
|- | |- | ||
! style="background: #DCDCDC;" |T3 | ! style="background: #DCDCDC;" |T3 | ||
Line 39: | Line 40: | ||
! style="background: #F5F5F5;" |T4: [[Tumor]] invades [[serosa]] (visceral peritoneum) or adjacent structures | ! style="background: #F5F5F5;" |T4: [[Tumor]] invades [[serosa]] (visceral peritoneum) or adjacent structures | ||
T4a: [[Tumor]] invades [[serosa]] (visceral peritoneum) | T4a: [[Tumor]] invades [[serosa]] ([[visceral peritoneum]]) | ||
T4b: [[Tumor]] invades adjacent structures | T4b: [[Tumor]] invades adjacent structures | ||
Line 53: | Line 54: | ||
|- | |- | ||
! style="background: #DCDCDC;" |N0 | ! style="background: #DCDCDC;" |N0 | ||
! style="background: #F5F5F5;" |No regional lymph node metastasis | ! style="background: #F5F5F5;" |No regional [[lymph node]] metastasis | ||
|- | |- | ||
! style="background: #DCDCDC;" |N1 | ! style="background: #DCDCDC;" |N1 | ||
! style="background: #F5F5F5;" |Metastasis in 1-2 regional lymph nodes | ! style="background: #F5F5F5;" |Metastasis in 1-2 regional [[lymph nodes]] | ||
|- | |- | ||
!N2 | !N2 | ||
!Metastasis in 3-6 regional lymph nodes | !Metastasis in 3-6 regional [[lymph nodes]] | ||
|- | |- | ||
!N3 | !N3 | ||
!Metastasis in seven or more regional lymph nodes | ![[Metastasis]] in seven or more regional [[lymph nodes]] | ||
N3a: Metastasis in 7-15 regional lymph nodes | N3a: [[Metastasis]] in 7-15 regional [[lymph nodes]] | ||
N3b: Metastasis in 16 or more regional lymph nodes | N3b: [[Metastasis]] in 16 or more regional [[lymph nodes]] | ||
|} | |} | ||
Revision as of 17:12, 20 December 2017
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2] Mohammed Abdelwahed M.D[3]
Stomach cancer Microchapters |
Diagnosis |
---|
Treatment |
Case Studies |
Stomach cancer staging On the Web |
American Roentgen Ray Society Images of Stomach cancer staging |
Risk calculators and risk factors for Stomach cancer staging |
Overview
According to the American Joint Committee on Cancer, there are 4 stages of stomach cancer based on the tumor spread.
Staging
There are two major classification systems currently in use for gastric cancer; the Japanese classification. The other and more widely used staging system is the American Joint Committee on Cancer has designated staging by TNM classification to define gastric cancer:[1]
Definitions of TNM
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 |
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 |
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 |
Stage | Description |
---|---|
M0 | No distant metastasis |
M1 | Distant metastasis |
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
- ↑ In H, Solsky I, Palis B, Langdon-Embry M, Ajani J, Sano T (2017). "Validation of the 8th Edition of the AJCC TNM Staging System for Gastric Cancer using the National Cancer Database". Ann Surg Oncol. 24 (12): 3683–3691. doi:10.1245/s10434-017-6078-x. PMID 28895113.