Part of Cancer staging guidance sheets
Thymic tumours (ICD10 C37)
Introduction
This is the data sheet for TNM 8th edition staging of thymic tumours (ICD10 C37)
For more detailed information regarding TNM staging, please see pages 115-117 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 |
N0 |
M0 |
|
Stage II |
T2 |
N0 |
M0 |
|
Stage IIIA |
T3 |
N0 |
M0 |
|
Stage IIIB |
T4 |
N0 |
M0 |
|
Stage IVA |
Any T |
N1 |
M0 |
|
|
Any T |
N0, N1 |
M1a |
|
Stage IVB |
Any T |
N2 |
M0, M1a |
|
|
Any T |
Any N |
M1b |
TNM clinical classification
T - primary tumour
| T value | Description |
|---|---|
|
TX |
Primary tumour cannot be assessed |
|
T0 |
No evidence of primary tumour |
|
T1 |
Tumour encapsulated or extending into the mediastinal fat, may involve the mediastinal pleura. T1a - No mediastinal pleural involvement T1b - Direct invasion of the mediastinal pleura |
|
T2 |
Tumour with direct involvement of the pericardium (partial or full thickness). |
|
T3 |
Tumour with direct invasion into any of the following; lung, brachiocephalic vein, superior vena cava, phrenic nerve, chest wall, or extrapericardial pulmonary artery or vein. |
|
T4 |
Tumour with direct invasion into any of the following; aorta (ascending, arch or descending), arch vessels, intrapericardial pulmonary artery, myocardium, trachea, or oesophagus |
N - regional lymph nodes
| N value | Description |
|---|---|
|
NX |
Regional lymph nodes cannot be assessed |
|
N0 |
No regional lymph node metastasis |
|
N1 |
Metastasis in anterior (perithymic) lymph nodes |
|
N2 |
Metastasis in deep intrathoracic or cervical lymph nodes |
M - distant metastasis
| M value | Description |
|---|---|
|
M0 |
No distant metastasis |
|
M1 |
Distant metastasis M1a - Separate pleural or pericardial nodule(s) M1b - Distant metastasis beyond the pleura or pericardium |
TNM pathological classification
pT - primary tumour
The pT and pN categories correspond to the T and N categories as per above.
Last edited: 20 December 2022 10:26 am
