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Удалившей грудь Анджелине Джоли предстоит операция по удалению яичников
The gene mutation itself is very rare. Less than 1% of American women have it and hereditary mutations like BRCA are linked to just 5%-10% of all breast cancer cases.
The U.S. Preventive Services Task Force, a government panel that writes clinical guidelines based on empirical evidence, recommends against population-wide BRCA testing in part because it could lead to false positives or test results that show mutations of an “unknown significance.” If carried out on a massive scale, the test, according to the task force, could lead to unnecessary “prophylactic surgery, chemoprevention, or intensive screening…The potential harms of routine referral for genetic counseling or BRCA testing in these women outweigh the benefits.”