TNM staging


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staging

 [stāj´ing]
1. the determination of distinct phases or periods in the course of a disease, the life history of an organism, or any biological process.
2. the classification of neoplasms according to the extent of the tumor. See also cancer.
diet staging in the nursing interventions classification, a nursing intervention defined as instituting required diet restrictions with subsequent progression of diet as tolerated.
TNM staging an international standard for the staging of tumors; the systems of the American Joint Committee on Cancer and the International Union Against Cancer are now identical. Staging is according to three basic components: primary tumor (T), regional nodes (N), and metastasis (M). Subscripts are used to denote size and degree of involvement; for example, 0 indicates undetectable, and 1, 2, 3, and 4 a progressive increase in size or involvement. Thus, a tumor might be described as T1N2M0. See also cancer.

TNM stag·ing

abbreviation that designates the most widely used classification form for most solid tumors created and updated by the American Joint Committee on Cancer and the International Union Against Cancer; based on characteristics of the tumors, nodal involvement, and extent of metatastatic spread.

TNM stag·ing

(stāj'ing)
A system of 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.

staging

1. the determination of distinct phases or periods in the course of a disease, the life history of an organism, or any biological process.
2. the classification of neoplasms according to the extent of the tumor.

TNM staging
staging of tumors according to three basic components: primary tumor (T), regional nodes (N) and metastasis (M). Subscripts are used to denote size and degree of involvement; for example, 0 indicates undetectable, and 1, 2, 3 and 4 a progressive increase in size or involvement. Thus, a tumor may be described as T1N2M0.
References in periodicals archive ?
Hispanic 42 2 11 4 Mapuche 7 0 Tumor differentiation Well Moderate Poor TNM staging I II IIIA IIIB IVA IVB Early Cancer Advanced Cancer (n = 32) (n = 137) Low High P Low High P Age .
Clinicopathological features- age-wise: When gastric cancers were classified by the age of the patient, cancers from Chinese patients displayed a larger tumour size, more frequent deep invasion, less frequent venous invasion, more frequent lymph node and liver metastasis, more peritoneal spreading, higher TNM staging, and fewer mixed-type carcinomas compared to Japanese patients (P<0.
The TNM staging system, which is used the most, gives 3 key pieces of information: T refers to the size of the tumor; N describes the cancer spread to nearby lymph nodes; and M shows whether the cancer has spread (metastasized) to other organs.
The use of unindicated radiation therapy was eliminated by the use of complete TNM staging in the oncology group.
The 7th AJCC/Union for International Cancer Control (UICC) TNM staging of lung cancer adopted the Hammar proposal for the classification of pleural invasion.
TNM staging of ACC of the head and neck prior to 35 operations Tx * T1 T2 T3 T3 NO 1 9 12 1 8 N1 0 0 0 1 1 N2 0 1 0 1 0 MO 0 10 11 2 9 M1 1 0 1 1 0 * Unknown primary tumor.
Recent studies have proposed the use of new TNM staging systems (European Neuroendocrine Tumor Society staging system) and biomarkers (Ki-67, cytokeratin 19, Cox-2, and epidermal growth factor receptor) to stratify gastroenteropancreatic NETs into categories with prognostic relevance.
Maxillary sinus cancer is included in the American Joint Committee on Cancer's (AJCC) TNM staging system.
As the material studied had been obtained from enucleated eyes, the size of the tumors was relatively large: according to the TNM staging, 5 tumors (10%) belonged to stage I, 10 (20%) to stage IIA, 15 (30%) to stage IIB, 17 (34%) to stage IIIA, and 3 (6%) to stage IIIB.
Although the current TNM staging criteria provide a fairly reliable tool for providing a prognosis to the patient, refinements in the cut-offs of TNM stages can still be made.
The confounding effects of comorbidity should be considered in the TNM staging of laryngeal cancer to improve our prognostic ability.
Although the current 6th edition of the TNM staging system for CRC, published by the International Union against Cancer (UICC), (7) still relies predominantly on the assessment of the anatomic extent of disease at the time of diagnosis, it has several undoubted advantages over the previously reported staging systems.