What does TNM stand for in medical terms?
Doctors and researchers all use what is known as TNM classification. The abbreviation “TNM” stands for tumor (T), nodes (N), and metastases (M). “Nodes” indicates whether or not the tumor has spread into neighboring (regional) lymph nodes.
What is TNM tumor?
A system to describe the amount and spread of cancer in a patient’s body, using TNM. T describes the size of the tumor and any spread of cancer into nearby tissue; N describes spread of cancer to nearby lymph nodes; and M describes metastasis (spread of cancer to other parts of the body).
What is TNM test?
The TNM System is a standard system for describing the extent of a cancer’s growth. This system was developed by the American Joint Committee on Cancer (AJCC) and is the most common system used to stage anal cancer.
What does pN0 mean?
Table 4. Definition of Regional Lymph Nodes – Pathological (pN) a,b
| pN Category | pN Criteria |
|---|---|
| pNX | Regional lymph nodes cannot be assessed (e.g., not removed for pathological study or previously removed). |
| pN0 | No regional lymph node metastasis identified or ITCs only. |
How is TNM staging done?
In the TNM system, the overall stage is determined after the cancer is assigned a letter or number to describe the tumor (T), node (N), and metastasis (M) categories. T describes the original (primary) tumor. N tells whether the cancer has spread to the nearby lymph nodes.
What does pT1b mean?
The definition of pT1b stage finding depends on the particular type of cancer that it refers to; for example, for breast cancer, pT1b stage finding is defined as follows: cancer with tumor size more than 0.5 cm, but not more than 1.0 cm in greatest dimension; for lung cancer, pT1b stage finding is defined as follows: …
What does pN1b mean?
Table 4. Definition of Regional Lymph Nodes – Pathological (pN) a,b
| pN Category | pN Criteria |
|---|---|
| –pN1a | Metastases in 1–3 axillary lymph nodes, at least one metastasis >2.0 mm. |
| –pN1b | Metastases in ipsilateral internal mammary sentinel nodes, excluding ITCs. |
| –pN1c | pN1a and pN1b combined. |
What does t3 n1 m0 mean?
For example your diagnosis may be ‘T3N1M0’. This means the cancer has grown into the outer lining of the bowel to up to three nearby lymph nodes, but has not spread to other parts of the body.
What do you need to know about the TNM system?
The TNM Classification of Malignant Tumours (TNM) is a globally recognised standard for classifying the extent of spread of cancer. It is a classification system of the anatomical extent of tumour cancers. TNM is a notation system that describes the stage of a cancer, which originates from a solid tumour, using alphanumeric codes:
Who is responsible for the TNM staging system?
Most common tumors have their own TNM classification. TNM was developed and is maintained by the Union for International Cancer Control (UICC). It is also used by the American Joint Committee on Cancer (AJCC) and the International Federation of Gynecology and Obstetrics (FIGO).
Is the TNM staging system applicable to leukaemia?
It is a classification system of the anatomical extent of tumour cancers. It has gained wide international acceptance for many solid tumour cancers, but is not applicable to leukaemia and tumours of the central nervous system. Most common tumours have their own TNM classification.
What does TNM stand for in cancer category?
Jump to navigation Jump to search. The TNM Classification of Malignant Tumours (TNM) is a globally recognised standard for classifying the extent of spread of cancer. It is a classification system of the anatomical extent of tumour cancers.