Hereditary breast cancer results from inherited mutations, primarily in BRCA1 and BRCA2, increasing lifetime cancer risk. Additional genes like TP53, PTEN, PALB2, CHEK2, and ATM also contribute to ...
A family history of breast, prostate, and pancreatic cancers is linked to ATM and KRAS gene mutations, despite negative BRCA1/2 results. Genetic testing and counseling are crucial for understanding ...