A CROSS SECTIONAL STUDY OF BREAST CANCER HISTOMORPHOLOGY AND ITS CORRELATION WITH ER/PR, HER 2NEU AND KI-67 EXPRESSION IN A TERTIARY CARE HOSPITAL AT KANPUR

Abstract

BACKGROUND Breast carcinoma is the most well-known malignancy in women. Different predictive and prognostic factors, for example, estrogen receptors (ER), progesterone receptors (PR) and human epidermal growth factor receptor (Her2neu), and Ki67 could inuence breast carcinoma behaviour, yet to date no authoritative connection has been set up among them and breast carcinoma subtypes. In this way present study was done to determine the interrelationships of these predictive and prognostic factors for breast carcinoma. METHODS In this cross sectional study, a total of 50 lumpectomy, modied radical mastectomy specimens of diagnosed carcinoma breast were included in this study. The histopathological grading of the breast carcinoma was performed by Nottingham modication of the Bloom Richardson grading system. All the cases went through immunohistochemistry for ER, PR, Her2neu and Ki67 expression. Association of ER, PR, Her2neu and Ki67 with different histomorphology was established. RESULTS The ER positivity was signicantly lower in tumors >5 cm size whereas Ki67was signicantly increased with increased tumor size. The ER positivity was signicantly lower in high grade tumors as compared to low grade tumors. The positive ER, PR, Her2neu and Ki67 were comparable in between premenopausal and post-menopausal age groups CONCLUSION The present study concludes that ER, PR show inverse while ki67 showed a direct relationship with the tumor grade. Correlation of histomorphology of breast tumor and Her2neu status could not be established.