Status evaluation of HER2/Neu receptors in breast cancers

Adeel Munawar, Bani Abid, Mahmooda Tasneem

Abstract


Objective: The main aim of this study was to evaluate the status of HER2/Neu receptors in patients with breast cancer.

Type of study: It is a cross sectional study.

Place and Duration of study: This study was carried out in a duration of 9 months from February 2018 to October 2018 in surgical department of Sir Ganga Ram Hospital Lahore.

Materials and Methods: A total of 100 patients were included in this study which presented in outdoor department of surgery. Female patients who had been diagnosed with breast cancer and were between the ages of 20 to 65 years were included in this study. Only those patients were included who had ductal / lobular carcinoma. Those patients in which there was a recurrence of breast cancer were excluded from this study and others excluded were the ones who rejected histopathology. Informed consent was taken from all the patients or their relatives. Ethical committee approval was taken. A pre-designed proforma was used to collect the data of the patients. Samples which were taken were sent to a reliable laboratory for HER2 / Neu status, tumor staging, histopathological type and progesterone and estrogen status. After tissue biopsy immunohistochemical studies were done and Hercep test was used to analysis. 3 plus score were considered positive and less than 3 were negative. SPSS version 16 was used for data analysis.

Results: A total of 100 patients were selected for the study. The mean age of the patients was 43.88 years. Positive and negative HER2/Neu receptors were seen in 40% and 60% of the patients respectively. 21% of the patients were diagnosed with grade 1 tumor, 35 patients had grade 2 tumor followed by 44% of the patients with grade 3 tumor. Ductal carcinoma and lobular carcinoma were found to be 87% and 13% respectively. Estrogen receptor(ER) was found to be positive in 75% of the patients while 25% of the patients had negative ER receptors. Progesterone (PR) receptors were found to be negative in 35% of the patients while 65% of the patients were positive for PR receptors.

Conclusion: Higher incidence of HER2/Neu receptors over expression is seen in this study. Patients with grade 3 tumors had the highest incidence. PR and ER were positive in most of the cases and HER2 /Neu receptors had no relation with obesity or age.


Keywords


Breast carcinoma, ER/PR, HER2/Neu receptors, over expression.

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References


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