Comparison of clinicopathological characteristics, disease free survival and recurrence in triple negative breast cancer(TNBC) with Non-TNBC

Abstract

Introduction: TNBC is associated with high mortality, morbidity and low survival rates. This study is aimed to study difference in pathological characteristics, disease free survival and recurrence between TNBC and Non-TNBC. Materials and Methods: Total 208 patients, who are diagnosed cases of breast carcinoma visiting our out patient department between August 2020 and July 2022 were enrolled. Demographic details, details during the presentation, pathological characterstics including the HPE, grade and receptor status, modality of treatment were taken. Enrolled patients were followed up. At the end of the study period, 2 year disease free survival, overall survival, recurrence of malignancy were noted. 102 patients who lost followup, status unknown or who has not completed a period of 2 years after diagnosis of Breast carcinoma were excluded. 106 patients were nalised, details were entered in excel sheet. Patients were divided into TNBC and Non-TNBC group and compared. Results: Prevalence of TNBC in our study was 22.6. Tumor size is more at presentation in TNBC compared to Non TNBC. All patients with TNBC had positive nodes during presentation (100%Vs78%). Presence of metastasis at the time of diagnosis is more in TNBC group(20.8%Vs 8.5%). Both groups has Intraductal Carcinoma as the predominant variant. Most of the TNBC had poorly differentiated grade tumors when compared to Non-TNBC. TNBC has more local(38.8% Vs 18.7%) and metastatic(22.22% Vs 4%) recurrences. 2 year Diseases free survival was more in Non-TNBC group(77.33% Vs 38.88%). Conclusions: TNBC has overall lesser disease survival period, more local and metastatic recurrences. Stage at diagnosis in TNBC is more advanced. Hence TNBC has got poor prognosis and high mortality. Early diagnosis and treatment is the key in reducing the mortality and better prognosis.