@mandi77, you may also be interested in these related discussions:
- Suspicious area Bi-rad 2 or 3: Do I advocate for a biopsy or wait? https://connect.mayoclinic.org/discussion/bi-rad-three-after-ultra-sound-and-mri-from-bi-rd-2-6-months-ago/
- Bi-rad 4: Surgical excision recommended for me https://connect.mayoclinic.org/discussion/bi-rad-4-surgical-excision-recommendated/
- BI-RADS 3 Question https://connect.mayoclinic.org/discussion/birads-3-question/
- ATM Gene Mutation and Care https://connect.mayoclinic.org/discussion/atm-gene-mutation-and-care/

Hopefully these discussions will help you prepare for your upcoming second opinion. Keep asking questions 🙂