Study for the Medical Council of Canada Qualifying Examination (MCCQE) I. Engage with flashcards and multiple-choice questions with detailed feedback. Prepare confidently!

Multiple Choice

In individuals with BRCA1 mutation, what combination of surgeries is commonly recommended to reduce cancer risk?

BRCA1 carriers have a substantially higher lifetime risk of both breast and ovarian cancers. The most effective way to lower that risk is to remove the tissues most at risk. Prophylactic removal of the breast tissue (bilateral mastectomy) addresses the breast cancer risk directly, while removing the ovaries (and fallopian tubes, if done as salpingo-oophorectomy) tackles ovarian cancer risk and, by lowering estrogen exposure, further reduces breast cancer risk as well. When these two preventive surgeries are combined, the overall risk reduction is the greatest for BRCA1 mutation carriers. Options like lumpectomy are surgical treatment choices for an existing breast cancer, not preventive strategies, and do not eliminate baseline cancer risk. Chemotherapy and radiation are treatments for cancer, not preventive measures, so they don’t serve the same risk-reduction purpose in someone without cancer.

BRCA1 carriers have a substantially higher lifetime risk of both breast and ovarian cancers. The most effective way to lower that risk is to remove the tissues most at risk. Prophylactic removal of the breast tissue (bilateral mastectomy) addresses the breast cancer risk directly, while removing the ovaries (and fallopian tubes, if done as salpingo-oophorectomy) tackles ovarian cancer risk and, by lowering estrogen exposure, further reduces breast cancer risk as well. When these two preventive surgeries are combined, the overall risk reduction is the greatest for BRCA1 mutation carriers.

Options like lumpectomy are surgical treatment choices for an existing breast cancer, not preventive strategies, and do not eliminate baseline cancer risk. Chemotherapy and radiation are treatments for cancer, not preventive measures, so they don’t serve the same risk-reduction purpose in someone without cancer.