Part of Cancer staging guidance sheets
Prostate tumours (ICD10 C61)
Introduction
This is the data sheet for TNM 8th edition staging of prostate tumours (ICD10 C61).
For more detailed information regarding TNM staging, please see pages 191-194 of the UICC TNM 8 book or visit the Wiley and UICC website.
Stage groupings
|
Stage Group |
T stage |
N stage |
M stage |
|---|---|---|---|
|
Stage I |
T1, T2a |
N0 |
M0 |
|
Stage II |
T2b, T2c |
N0 |
M0 |
|
Stage III |
T3, T4 |
N0 |
M0 |
|
Stage IV |
Any T |
N1 |
M0 |
|
|
Any T |
Any N |
M1 |
TNM clinical classification
T - primary tumour
| T value | Description |
|---|---|
|
TX |
Primary tumour cannot be assessed |
|
T0 |
No evidence of primary tumour |
|
T1 |
Clinically inapparent tumour that is not palpable |
|
T1a |
Tumour incidental histological finding in 5% or less of tissue resected |
|
T1b |
Tumour incidental histological finding in more than 5% of tissue resected |
|
T1c |
Tumour identified by needle biopsy (e.g., because of elevated PSA) |
|
T2 |
Tumour that is palpable and confined within prostate |
|
T2a |
Tumour involves one half of one lobe or less |
|
T2b |
Tumour involves more than half of one lobe, but not both lobes |
|
T2c |
Tumour involves both lobes |
|
T3 |
Tumour extends through the prostatic capsule* |
|
T3a |
Extraprostatic extension (unilateral or bilateral) including microscopic bladder neck involvement |
|
T3b |
Tumour invades seminal vesicle(s) |
|
T4 |
Tumour is fixed or invades adjacent structures other than seminal vesicles: external sphincter, rectum, levator muscles, and/or pelvic wall |
Note:
* Invasion into the prostatic apex or into (but not beyond) the prostatic capsule is not classified as T3, but as T2.
N - regional lymph nodes
| N value | Description |
|---|---|
|
NX |
Regional lymph nodes cannot be assessed |
|
N0 |
No regional lymph node metastasis |
|
N1 |
Regional lymph node metastasis |
M - distant metastasis
| M value | Description |
|---|---|
|
M0 |
No distant metastasis |
|
M1 |
Distant metastasis |
|
M1a |
Non‐regional lymph node(s) |
|
M1b |
Bone(s) |
|
M1c |
Other site(s) |
Note:
* When more than one site of metastasis is present, the most advanced category is used. (p)M1c is the most advanced category
TNM pathological classification
pT - primary tumour
The pT and pN categories correspond to the T and N categories.
Last edited: 29 December 2022 1:50 pm
