Knowra Cancer staging Cancer staging Cancer staging classifies the extent of cancer using features such as primary tumor size, regional lymph-node involvement, and distant metastases. It helps describe disease extent and guide treatment and prognosis.
TNM classification : A cancer staging system that records the primary tumor, regional lymph nodes, and distant metastases. Its T, N, and M categories are combined to assign many cancers an overall stage.
Cancer treatment : Medical interventions intended to control, eliminate, or relieve cancer. Stage helps clinicians choose among local treatments, systemic therapies, or combinations.
Cancer grading : The assessment of how abnormal cancer cells look and, in some systems, how aggressively they may behave. Grade describes tumor biology, while stage describes how far cancer has extended.
Cancer diagnosis : The identification of cancer using clinical evaluation, laboratory tests, imaging, and tissue examination. Staging follows diagnosis and combines findings that establish the disease’s extent.
Molecular profiling : The analysis of molecular features such as gene mutations, expression patterns, or proteins in a sample. Molecular findings can distinguish tumors with different behavior despite similar anatomical stages.
Tumor size : A measurement of a tumor’s dimensions or extent within its tissue of origin. Primary-tumor size or local extent often determines the T category.
Cancer prognosis : An estimate of the likely course and outcome of cancer in a particular clinical situation. Stage is a major factor in estimating outcomes, though it does not determine an individual future.
Cancer screening : Testing people without symptoms to identify possible cancer or precancerous changes. Screening seeks early detection; staging classifies extent after cancer is identified.
Biopsy : The removal of cells or tissue for examination to diagnose disease. Biopsy establishes tumor identity and can provide findings used in staging.
Cancer heterogeneity : The biological variation among cancer cells within a tumor or among tumors in one patient. A single stage summarizes extent but not all variation within or between tumors.
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