PROGNOSTIC FACTORS IN PRIMARY BREAST-CARCINOMA
PROGNOSTIC FACTORS IN PRIMARY BREAST-CARCINOMA
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DOI:
10.1136/jcp.48.11.981
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发表时间:
1995-11-01
影响因子:
3.4
通讯作者:
ELSTON, CW
中科院分区:
文献类型:
--
作者:
PINDER, SE;ELLIS, IO;ELSTON, CW
The range of therapeutic options for the treat-ment of patients with primary breast cancer has widened considerably in recent years. The introduction of mammographic screening has led to the identification of greater numbers of small, stage 1 cancers. It is therefore in-creasingly important that clinicians are given the most accurate prognostic information on which to base the selection of the optimum therapy for eachwoman. In this way both under and over treatment can be avoided. This clinical need for information has resulted in an ever widening search for the ideal prognostic factor in primary breast cancer and consequently a multitude of papers have proposed numerous putative prognostic factors with differing degrees of significance. The current obsession with high technology has, to some extent, led to the value of traditional histopathology being overlooked, although the correlation between tumour morphology and degree of malignancy was first described over 100 years ago. This is unfortunate because routine histopathological examination of breast cancer specimens can yield a great deal of clinically useful information.Histological grade provides prognostic information in many tumours, including breast cancers. Two main methods have evolved, based either on nuclear factors or a com-bination of cellular features (nuclear, cyto-logical and architectural). The latter method is the most widelyaccepted for grading breast cancer and has been refined with the stricter definition of more objective criteria.'As a result, the reproducibility of histological grad-ing systems for breast carcinoma, previously questioned, has been improved; several recent studies have confirmed that good correlation between pathologists can be obtained if strict criteria are used. 2" In the Nottingham breast cancer grading method the three features assessed are tubule formation, nuclear size/pleomorphism andmi-totic count. Tumours in which less than 10% of the carcinoma is forming tubules score 3, those with 10 to 75% score 2 and if more than 75% of the cancer is forming central lumina, a score of 1 is given. Mild, moderate and high nuclear size/pleomorphism, when compared with normal epithelial cells score, 1, 2 and 3, respectively. For mitotic counts, a score is given according to the field area of thehigh power lens used. Only nuclei with clear features of metaphase, anaphase or telophase are included;