An observational study on the incidence of HER-2/neu receptor over-expression and comparison of clinical presentation between HER-2/neu positive and HER-2/neu negative breast cancer
DOI:
https://doi.org/10.18203/2349-2902.isj20170073Keywords:
Breast cancer, Chemotherapy, HER-2/neu receptorAbstract
Background:Tumours that over express HER2/neu are less responsive to chemotherapy and patients with these tumours have a reduced survival compared with patients with normal levels of HER2/neu. The aim was to determine the frequency of HER-2/neu receptor over-expression in Breast cancer patients and its comparison to Her-2/neu negative breast cancer in respect to clinical presentation, risk factors, clinical staging, pathological staging.
Methods: 50 patients who presented with Invasive ductal carcinoma of breast, meeting inclusion and exclusion criteria were included in the study. They were divided into two groups; according to Her-2/neu receptor over-expression (Yes/No).Incidence of Her-2-neu receptor over-expression was determined among the sample population. Both groups were compared on the basis of various parameters.
Results: Young age at presentation, negative hormone receptor status (ER/PR), high grade of tumour, large sized tumour and increased axillary lymph nodes are more common in Her-2/neu over-expression patients. These parameters are statistically significant.
Conclusions: Her-2/neu overexpressing breast cancers have increased invasive and metastatic capability and are less responsive to chemotherapy. They have increased risk of recurrence and patients with these tumours have a reduced survival compared with patients with normal levels of HER2/neu.
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