'''Table 5: Genes with known hereditary risk associations in breast cancer according to National Comprehensive Cancer Network (NCCN) Guidelines (version 3.2019)'''
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{| class="wikitable"
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|'''Gene'''
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|'''Associated Syndrome; Breast Cancer Subtype'''
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|-
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|''ATM''
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|Ataxia telangiectasia syndrome
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|-
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|''BRCA1''
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|BRCA-Related Breast/ Ovarian Cancer Syndrome; TNBC
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|-
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|''BRCA2''
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|BRCA-Related Breast/ Ovarian Cancer Syndrome; TNBC
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|-
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|''CDH1''
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|Hereditary Diffuse Gastric Cancer and Lobular Breast Cancer