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Establishment of a Medical System with HBOC in Mind

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Practical Guide to Hereditary Breast and Ovarian Cancer

Abstract

It has been reported that 5–10% of breast cancers are hereditary, and about half of all hereditary breast cancer are hereditary breast and ovarian cancer (HBOC), which is caused by BRCA1 (breast cancer susceptibility gene 1) and BRCA2 (breast cancer susceptibility gene 2) mutations. When HBOC is identified in breast cancer patients, the prevention and treatment options include prophylactic surgery of the breast and ovary, screening for contralateral breast cancer with annual breast magnetic resonance imaging (MRI) surveillance, use of poly (ADP-ribose) polymerase (PARP) inhibitors, and genetic testing of relatives. Therefore, HBOC should be considered when treating breast cancer patients, and genetic testing should be suggested for patients who need BRCA1/2 gene testing. Once BRCA mutation is identified, it is necessary to support patients’ decision-making by providing information from multiple disciplines. The establishment of a surveillance system for BRCA1/2 mutation carriers who do not develop breast cancer will be an issue for future consideration.

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Correspondence to Rika Narui .

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Narui, R., Taruno, K., Nakamura, S. (2023). Establishment of a Medical System with HBOC in Mind. In: Aoki, D., Nakamura, S., Miki, Y. (eds) Practical Guide to Hereditary Breast and Ovarian Cancer. Springer, Singapore. https://doi.org/10.1007/978-981-99-5231-1_1

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  • DOI: https://doi.org/10.1007/978-981-99-5231-1_1

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  • Publisher Name: Springer, Singapore

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  • Online ISBN: 978-981-99-5231-1

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