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.
References in periodicals archive ?
According to the ENETS recommended TNM staging system, [sup][10] 29 (29%) patients had T1 tumors, 35 (35%) had T2, 31 (31%) had T3, and 5 (5%) had T4.
Stoica, "Colorectal cancer and the 7th revision of the TNM staging system: review of changes and suggestions for uniform pathologic reporting," Romanian Journal of Morphology and Embryology, vol.
Construction of the Chinese University Prognostic Index for hepatocellular carcinoma and comparison with the TNM staging system, the Okuda staging system, and the Cancer of the Liver Italian Program staging system: a study based on 926 patients.
Whereas TNM staging of retinoblastomas with CD24 expression had varying pattern and showed no significant correlation between them.
Previous editions of the TNM staging system relied on arbitrary cutoffs of size and shape to characterize pericolonic tumor metastases and attempted to integrate those characterized as TDs into the T category.
A multivariate Cox proportional hazards model using variables associated with RFS in our study indicated that depth of invasion, lymphatic invasion, venous invasion, TNM staging, Lauren classification, and lymph node metastasis (P < 0.05), but not age, gender, or tumor size (P > 0.05), were independent predicted factors for recurrence in gastric cancer.
Thus patient was diagnosed to be a case of primary fallopian tube carcinoma by TNM staging T1cN0 M0 & by FIGO stage-IC.
According to the TNM staging system for GBC (AJCC Cancer Staging Manual, 7th edition), (19) the adenocarcinomas were grouped as stage I (32 cases), stage II (81 cases), stage IIIA and IIIB (24 cases), and stage IVA and IVB (32 cases).
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 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.
Classifications.--Goblet cell carcinoids are classified according to the WHO and to TNM staging: