staging

staging /stag·ing/ (staj´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.

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TNM staging  staging of tumors according to three basic components: primary tumor (T), regional nodes (N), and metastasis (M). Adscripts 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 T1, N2, M0.

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stag·ing (stjng)

n.

The classification of neoplasms according to the extent of the tumor.

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staging,

n a method for describing the growth and rate of metastasization of a tumor, as well as its prognosis. There are four stages, each evaluated according to size, amount of metastasis, and whether or not the lymph nodes are involved. See also TNM staging system.

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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.

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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.