A system for describing stages of cancer. T describes the size of the tumor and whether it has grown into nearby tissues. N describes any lymph nodes involved. M describes metastasis.
A tumour staging system for classifying patients with thyroid cancer into groups based on tumour size (T), presence of lymph node metastases (N), and the presence of distant metastases (M). Also referred as "tumour-node-metastasis."
An abbreviation for tumor, lymph nodes, and metastases, a method of describing important features about a cancer.
The letters used to denote the areas of involvement of a tumor while staging. T refers to the Tumor. A T1 tumor is small and not invasive. A T4 tumor is large and invasive. N refers to the Lymph nodes. N0 is a lymph node that is not involved with tumor, N1 is a freely moveable lymph node that is involved by the tumor and N3 is a non-moveable lymph node that is involved by the tumor. M refers to distant Metastasis (such as the lungs or liver). M0 means there is no metastasis and M1 means there is distant metastasis.
Three measures of tumor spread, tumor size, lymph nodes affected, and metastatic (distant) sites involved—that are used to stage lung cancer and many other cancers at Levels I through IV.
(tumor, nodes, metastases): see staging
TNM Classification of Malignant Tumours (TNM) is the cancer staging system developed and maintained by the International Union Against Cancer (UICC) to achieve consensus on one globally recognised standard for classifying the extent of spread of cancer. The TNM classification is also used by the American Joint Committee on Cancer (AJCC) and the International Federation of Gynecology and Obstetrics (FIGO). In 1987, the UICC and AJCC staging systems were unified into a single staging system.