COMPARISON OF CLINICO-PATHOLOGICAL FEATURES AND PROGNOSIS OF TRIPLE-NEGATIVE AND NON-TRIPLE-NEGATIVE FEMALE BREAST CANCER PATIENTS
Journal Title: Journal of Evolution of Medical and Dental Sciences - Year 2018, Vol 7, Issue 30
Abstract
BACKGROUND Triple-negative breast cancer patients have no expression of Oestrogen Receptor (ER), Progesterone Receptor (PR) and there is neither expression nor amplification of human epidermal growth factor receptor 2 in a tumour. But non-triple negative breast cancer patients have either oestrogen receptor or progesterone receptor or both positive with or without amplification of Human epidermal growth factor receptor 2 in a tumour. The purpose of this retrospective study is to compare and analyse the clinico-pathological features, recurrence, metastasis and prognosis of triple-negative breast cancer patients and non-triple negative breast cancer patients. MATERIALS AND METHODS A retrospective descriptive study for a total of 200 stage III female breast cancer patients (100 triple-negative patients and 100 non-triple-negative patients) were diagnosed and treated at the Department of Radiotherapy, T.D Medical College Hospital, Alappuzha from January 1st 2011 to December 31st 2011. The clinical features, recurrence, metastasis and prognosis of the two groups were compared. RESULTS The triple-negative breast cancer patients were characterised as younger age, higher histological grade, bigger tumour size, higher clinical stage at diagnosis, more recurrence and metastasis, lower 5-year disease free survival rate and 5-year overall survival rate. The lungs, liver and brain were the first three most common sites of metastases. CONCLUSION In our study, we found that triple-negative breast cancer was a distinct subgroup of breast cancer with particular clinico-pathologic behaviour. Compared with the non-triple-negative breast cancer, triple-negative breast cancer was characterised by more aggressive behaviour, metastasis tendency and lower disease-free survival and overall survival rate. This result suggested that characteristics like family history, premenopausal status, tumour size, histological grade of triple-negative breast cancer patients had more local relapse and metastases than that of in non-triple-negative breast cancer that was statistically significant.
Authors and Affiliations
Nonam Chellappan, Smitha G. Raj
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