RT Book, Section A1 Euhus, David A2 Morita, Shane Y. A2 Balch, Charles M. A2 Klimberg, V. Suzanne A2 Pawlik, Timothy M. A2 Posner, Mitchell C. A2 Tanabe, Kenneth K. SR Print(0) ID 1145759910 T1 Genetic and Familial Syndromes T2 Textbook of Complex General Surgical Oncology YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9780071793315 LK hemonc.mhmedical.com/content.aspx?aid=1145759910 RD 2024/04/24 AB Genetic predisposition accounts for only a fraction of breast cancers, but genetic testing, in the appropriate context, is the most powerful tool available for quantitative risk stratification. The information provided by genetic testing contributes directly to risk management decisions and, frequently, to decisions about cancer treatment. BRCA1 and BRCA2 are still responsible for the majority of hereditary breast cancer cases, but the list of rare genes is increasing rapidly. The commercialization of massive parallel sequencing tests (i.e., next generation sequencing) has revolutionized genetic testing. Panel testing is becoming more common and patients are presenting more frequently with rare mutations in genes like CHEK2, PALB2, and ATM.