USMLE Forum Archives - USMLE Step 3 - Breast cancer staging
Breast cancer staging
dinmenace - 06-30-11 23:18
Stage. The TNM classification for breast cancer is based on the size of the tumor (T), whether or not the tumor has spread to the lymph nodes (N) in the armpits, and whether the tumor has metastasized (M) (i.e. spread to a more distant part of the body). Larger size, nodal spread, and metastasis have a larger stage number and a worse prognosis.
The main stages are:
Stage 0 is a pre-cancerous or marker condition, either ductal carcinoma in situ (DCIS) or lobular carcinoma in situ (LCIS).
Stages 1–3 are defined as 'early' cancer with a good prognosis.
Stage 4 is defined as 'advanced' and/or 'metastatic' cancer with a poor prognosis.
dinmenace - 06-30-11 23:18
Stage. The TNM classification for breast cancer is based on the size of the tumor (T), whether or not the tumor has spread to the lymph nodes (N) in the armpits, and whether the tumor has metastasized (M) (i.e. spread to a more distant part of the body). Larger size, nodal spread, and metastasis have a larger stage number and a worse prognosis.
The main stages are:
Stage 0 is a pre-cancerous or marker condition, either ductal carcinoma in situ (DCIS) or lobular carcinoma in situ (LCIS).
Stages 1–3 are defined as 'early' cancer with a good prognosis.
Stage 4 is defined as 'advanced' and/or 'metastatic' cancer with a poor prognosis.
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