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    The relationship between mutation carriage of BRCA1/2 and clinicopathological characteristics in women with breast cancer – experience from a diagnostic centre in Turkey
    (Termedia Publishing House Ltd., 2024) Duzkale, Neslihan; Guler, Onur Can; Kutun, Suat; Emiroglu, Canan; Saridemir, Serdar; Gokce, Aysun; Kandemir, Olcay
    The 5–10% of breast cancers (BC) are hereditary, and BRCA1/2 are causative in 25% of those inherited. It was aimed to examine the BRCA1/2 genotype-BC phenotype relationship. In 170 female patients with BC, BRCA1/2 genes were investigated using Next Generation Sequencing. Demographic and clinicopathological characteristics of the patients and correlations of pedigree analysis with BRCA1/2 mutation status were analysed. BRCA1/2 carriage was found to be 9.4%. When the patients were grouped as ? 40 and > 40 according to the age at diagnosis of BC, the tumour grade was higher in the ? 40 groups. In the study, BRCA1/2 carriage and tumour grade were higher in patients with triple-negative breast cancers (TNBC). The risk of TNBC was 5.560 times higher in BRCA1/2 carriers than in non-carriers. There is a significant relationship between BRCA1/2 carrier and BC hormone receptor negativity, tumour grade, and BC diagnosis age. © 2024, Termedia Publishing House Ltd.. All rights reserved.