Classification
TNM staging
Definitions related to tnm staging system:
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(tnm staging) Classification of neoplasm according to the characteristics of the tumor (T), such as size; the degree of involvement of the lymph nodes (N); and the amount of detectable metastasis (M).NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A system developed by the American Joint Committee on Cancer (AJCC) that uses TNM to describe the extent of cancer in a patient's body. T describes the size of the tumor and whether it has invaded nearby tissue. N describes whether cancer has spread to nearby lymph nodes, and M describes whether cancer has metastasized (spread to distant parts of the body). The TNM staging system is used to describe most types of cancer.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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A system for clinicopathologic evaluation of tumors based on the extent of tumor involvement at the primary site (T, followed by a number indicating size and depth of invasion), and lymph node involvement (N) and metastasis (M) each followed by a number starting at 0 for no evident metastasis; numbers used depend on the organ involved and influence the prognosis and choice of treatment.NCI ThesaurusU.S. National Cancer Institute, 2021
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