- 47-year-old female
- In 2014, during a reduction mammoplasty, HER2-positive breast cancer was discovered. Following neoadjuvant therapy, a mastectomy and axillary node dissection were performed (9 lymph nodes).
- Tumor size: 55 x 25 x 15 mm
- Miller-Payne 1, high grade
- Ki67: 70%
- Currently receiving chemoradiotherapy
During follow-up, an ultrasound detected a 19 x 17 mm lesion in the left breast. Physical examination revealed two axillary lymph nodes with a cortex thickness of 9 mm.
- Breast biopsy results: ER 10-15%, PR 3-5%, HER2-negative, Ki67 60-65%
- Axillary node biopsy (level IIab) negative
My question is as follows:
Should I perform a sentinel lymph node biopsy (SLNB) during surgery?
If the contralateral side comes back positive, should I proceed with axillary dissection?
And genetic test result?
Questions 1-what type of breast surgery are you planning 2-She has not received neoadjuvant chemotherapy for current breast cancer, right?