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A Correlation Study between Clinical, Histomorphological Features and Estrogen and Progesterone Receptors and Her2/Neu Expression in Carcinoma Breast

Suresh K.K, Professor, Department of Pathology, JJM Medical College, Davanagere, Karnataka 577004 India , Bindu B.J.1 , Suresh K.K.2 , Chatura K.R.3 , Sunil Kumar K.B.4

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Indian Journal of Pathology: Research and Practice 7(9):p 1031-1038, September 2018. | DOI: DOI: http://dx.doi.org/10.21088/ijprp.2278.148X.7918.12

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Abstract

 Background: Breast carcinoma is one of the leading causes of malignancy in females.Assessment of Estrogen Receptors (ER)/ Progesterone receptors (PR) and HER2/neu expression in breast cancer is mandatory in clinicalpractice. Immunohistochemistry (IHC) for assessing hormonal receptor status is easier, safer, and hasbetter ability to predict response to adjuvant endocrine therapy. HER2/neu overexpression is shown to have important prognostic and predictive value. The best approach to the use of immunohistochemical markers is to couple them with standard Haematoxylin & Eosin (H&E) based histology and to use panel of markers. Objectives: To assess the ER, PR & HER2/neu status and correlate with histological grade and other clinicopathological parameters. Materials and methods: Fifty cases of breast carcinoma were taken forthe study. H&E sections diagnosed as carcinoma were assessed for histological type and grade. One dedicated block from tumour, not fixed for more than 24 hours in 10% formalin was used for ER/PR and HER2/neu receptor evaluation by IHC. Statistical analysis was done with SPSS software, using chisquare test. Results: A Total of 50 carcinoma breast cases were subjected to IHC. Twenty four cases (48.0%) were of histologic grade-II, 17 cases (34%) of grade III and nine cases (18%) were of grade I. ER, PR and HER2/neu status correlated significantly with histological grade. (p= 0.003). Conclusion: ER, PR & HER2/neu status correlates well with histopathological grading. Hence, immunohistochemical analysis should be incorporated in the routine histopathology reports and canbe of great value in deciding the treatment protocols. 

 
Keywords: Breast Carcinoma; Immunohistochemistry; Er; Pr; Her2/ Neu; Histopathological Grading.

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DOI: DOI: http://dx.doi.org/10.21088/ijprp.2278.148X.7918.12

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