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The Korean Journal of Pathology 1993;27(6): 605-617.
A Comparative Study of PCNA Immunostaining, AgNOR Scores Hormone Receptors and Histology in Human Breast Cancer.
Eun Sook Chang, Kwan Kyu Park
Department of Pathology, Keimyung University School of Medicine, Taegu, Korea.
ABSTRACT
This study was performed on 50 cases of primary breast cancer removed surgically during the period 1990~1991 and compared the results of four morphologic methods developed for the detection of estrogen receptors, progesterone receptors, monoclonal antibody PCNA immunoreactivity, and the mean number of argyrophilic nucleolar organizer regions(mAgNORs) to ascertain the prognostic significance and also to detect highly malignant heterogenous cancer. To determine the validity of these measurements, a variance analysis was done with Kruskal-Wallis 1-way ANOVA. The results showed that the significant correlation between histologic grade and ER/PR status(P=0.005/P=0.015), the borderline significant correlation between mAgNORs and ER/PR status(P=0.08), and between AgNORs and stage(P=0.07), PCNA has no correlation with ER/PR status(P=0.25), clinical stage and histologic grade. In follow up, four cases of invasive ductal carcinoma with ER/PR, developed early and rapid metastasis within 2 years, three of them were classified as histologic grade 3 and another case was grade 2, whereas two of them were classified ans stage III(+) and the rest were in stage IIB(+) and stage IIA(-). The mAgNOR count of these four cases were ranged from 3.32 to 4.29 which were in the aneuploid category most likely. One of them had rather stormy rapid course with multiple organ metastases resulting death within one year. These results indicated that ductal carcinoma(>2cm size) with ER-/PR- and high mAgNOR level or high PCNA grade, and hihg histologic grade had h highly malignant course, marked by rapidly developing metastases. Thus we concluded that the status of ER/PR alone in tumor tissue is an important information for selecting hormone treatment btu, for the ultimate prognosis, is a weak indicator. Therefore for early detection of such heterogenous tumor, besides ER/PR, AgNORs or PCNA, histologic grade and tumor size are very useful as biological indicators of prognosis. The status ER/PR in combination with these indicators are more accurate and provide better basis on which to base a decision for early implementation of chemotherapy from which to give probably benefit by inhibition of rapid progress.
Key Words: Breast cancer; ER; PR; AgNOR; PCNA
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