TNM Staging Flashcards
T means
Tumor
N means
Lymph node
M means
Metastasis
Grading in “T”
TX
T0
Tis
T1
T2
T3
T4
Grading in “N”
NX
N0
N1
N2
Grading in “M”
MX
M0
M1
unable to assess primary tumor
TX
no evidence of primary lesions
T0
carcinoma in situ
Tis
Tumor penetrates submucosa and mucosa
T1
Tumor invades but fails to penetrate the muscle layer
T2
Tumor penetrates the subserosa
T3
Tumor penetrate deep into the peritoneum or other organs
T4
Unable to assess lymph node involvement
NX
No lymph node involvement
N0
Metastasis in perirectal nodes around 1-3
N1
Metastasis of 4 or more perirectal nodes
N2
Unable to assess distant metastasis
MX
No distant metastasis
M0
There is distant metastasis
M1
TNM system for staging breast cancer:
0-2 centimeters tumor size
T1
TNM system for staging breast cancer:
2-5 centimeters tumor size
T2
TNM system for staging breast cancer:
> 5 centimeters tumor size
T3
TNM system for staging breast cancer:
Tumor has broken through skin or attached to chest wall
T4
TNM system for staging breast cancer:
Surgeon cant feel any nodes
N0
TNM system for staging breast cancer:
Surgeon can feel swollen nodes
N1
TNM system for staging breast cancer:
Nodes feel swollen and lumpy
N2
TNM system for staging breast cancer:
Swollen nodes located near collarbone
N3
TNM system for staging breast cancer:
Tested nodes are cancer-free
M0
TNM system for staging breast cancer:
Tested nodes show cancer cells or micrometastasis
M1
