Evaluation of ER, PR, HER2 / neu Receptor Status in Breast Cancer - A Cross Sectional Study from Manipur

Abstract

Themthingla Zimik1, Angelica Laiphrakpam2, Deepa Longjam3, L. Sushila Devi4

BACKGROUND
Breast cancer is the most common cancer in women worldwide and has surpassed
cervical cancer in India. As a result of regular mammography screening programs
and public awareness, early-stage breast cancer with better prognosis has
occurred. Immunohistochemistry (IHC) is now a common practice in tumour
evaluation which are of importance in diagnosis as well as for deciding the
treatment and of prediction of prognosis in breast cancer. The present study was
undertaken in view of correlating the histopathology of the tumour and IHC profile
with respect to oestrogen receptor (ER), progesterone receptor (PR) and HER2 /
neu.
METHODS
The study is a cross-sectional prospective analysis of patients with primary
carcinoma of breast who are undergoing surgery over a period of 2 years from
September 2017 to August 2019. All specimens were processed and stained with
haematoxylin and eosin and immunohistochemistry was done for oestrogen and
progesterone receptors and HER 2neu.
RESULTS
A total of 20 cases of breast carcinoma specimens were studied, whose age ranged
from 24 - 72 years of age. All the 20 cases occurred in females. Infiltrating duct
carcinoma was the most histological subtype noted in this study comprising 85 %
(17 / 20) of cases. In the study 50 % (10/20) of the cases showed ER / PR
positivity with negative HER2 / neu while 15 % (3/15) of cases were negative for
ER / PR and HER2 / neu and only one case showed positivity for all three markers.
10 cases (50 %) had lymph node metastases in this study.
CONCLUSIONS
Breast cancer is the most commonly diagnosed malignancy in Indian women and
is also the leading cause of cancer death in women worldwide. Assessment of
receptor (ER, PR and HER – 2 / neu) status along with histopathological grading
and staging will guide the clinicians to impart a correct treatment protocols to the
patients. It will also be of great help in assessing the prognosis.
 

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