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STAGING AND GRADING (Regional lymph nodes (NO) (NX- Regional lymph nodes…
STAGING AND GRADING
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Tumour stage (T)
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T1, T2, T3 & T4- Progressive increase in the size of the tumour
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Metastases (M)
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M1, M2, M3- Ascending degrees of metastases present; this will include metastases to distant lymph nodes.
grading
Staging determines the size of the tumor and the existence of metastasis. Several system exist for classifying the anatomic existent of disease. The TNM system is frequently used. T refers to the existence of the primary tumor, N refers to lymph nodes involvement, and M refers to the extent of metastasis.
staging
Grading refers to the classification of the tumor cell. Grading system seek to define the type of tissue from which the tumor originated and the degree to which the tumor cells retain