I just discovered that you recently posted a related question.
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Thanks!
Don't get ahead of yourself:
1. Breasts with benign solid and cystic features, called fibrocystic breasts , are very common. Some say about 45% of women have this condition.
2. A family hx of BC is usually only considered significant when there are first-degree relatives (mother, sister) in either parent's family. (And most people dx with breast cancer don't have a family hx of it.)
3. Prophyllactic mastectomy may be suggested if someone has had genetic testing and has been found to carry a BRCA 1 or BRCA 2 mutation. Otherwise, it is usually not considered unless a person has been dx with breast cancer, or at least widespread precancerous lesions. (Or maybe if a person has a STRONG family hx of BC and wants to be ultra-cautious...)
4. The radiologist's report usually contains a BI-RADS Score, which indicates the degree of suspicion (if any) regarding any findings, and includes recommendations for followup.
5. If anything suspicious shows up, the first step would be a biopsy, to see whether or not i it is actually a matter for concern.
5. If it should be, at that point you would be offered alternatives, and could decide how aggressively you wanted to react.
So, one step at a time, okay? And please keep us posted regarding how things turn out.
Best wishes...