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Difference between revisions of "Invasive breast cancer"
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→Staging breast cancer: tweak
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=Staging breast cancer= | =Staging breast cancer= | ||
Definitions:<ref>URL: [http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging]. Accessed on: 8 July 2010.</ref> | ==N stage== | ||
*Isolated tumour cells: <=0.2 mm '' | Definitions:<ref name=acs_website>URL: [http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging]. Accessed on: 8 July 2010.</ref> | ||
*Micrometastasis: <=0.2 cm ''and'' ( >0.2 mm ''or'' > | *Isolated tumour cells: <=0.2 mm ''or'' <=200 cells -- in a single cross-section. † | ||
*Micrometastasis: <=0.2 cm ''and'' ( >0.2 mm ''or'' >200 cells ). | |||
*Macrometastasis: >0.2 cm. | |||
Note: | |||
* | * † The ''American Cancer Society'' web site says "or".<ref name=acs_website/> The CAP protocol says "and/or" and notes it is all subjective. | ||
Lymph nodes:<ref>URL: [http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging]. Accessed on: 8 July 2010.</ref> | Lymph nodes:<ref>URL: [http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging]. Accessed on: 8 July 2010.</ref> | ||
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*pN2 4-9 positive LNs; internal mammary LNs ''or'' axillary LNs. | *pN2 4-9 positive LNs; internal mammary LNs ''or'' axillary LNs. | ||
*pN3. | *pN3. | ||
==T stage== | |||
Tumour:<ref>URL: [http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging http://www.cancer.org/Cancer/BreastCancer/DetailedGuide/breast-cancer-staging]. Accessed on: 8 July 2010.</ref><ref>URL: [http://www.cancerhelp.org.uk/type/breast-cancer/treatment/tnm-breast-cancer-staging http://www.cancerhelp.org.uk/type/breast-cancer/treatment/tnm-breast-cancer-staging]. Accessed on: 9 July 2010.</ref> | |||
*pT1: <= 2 cm. | |||
**pT1mic <= 0.1 cm. | |||
**pT1a > 0.1 cm ''and'' <= 0.5 cm. | |||
**pT1b > 0.5 cm ''and'' <= 1.0 cm. | |||
**pT1c > 1.0 cm ''and'' <= 2.0 cm. | |||
*pT2: > 2 cm and <= 5 cm | |||
*pT3: > 5 cm. | |||
*pT4: chest wall or skin involvement. | |||
==M stage== | |||
Distant metastasis: | |||
*cM0(i+) <=0.2 mm focus of tumour cells, without clinical signs and symptoms. | |||
*pM1 focus of tumour cells > 0.2 mm. | |||
=Lymphovascular invasion= | =Lymphovascular invasion= | ||