Utility of Oncotype DX score in clinical management for T1 estrogen receptor positive, HER2 negative, and lymph node negative breast cancer.
Thi Truc Anh NguyenLauren M PostlewaitChao ZhangJane L MeiselRuth O'ReganSunil BadveKevin KalinskyXiaoxian LiPublished in: Breast cancer research and treatment (2022)
This study demonstrates that the metastatic rate of T1a and T1b ER+/HER2-/LN- breast cancer is very low. Patients with low grade (1 or 2), T1a ER+/HER2-/LN- breast cancer may not need RS for treatment decision-making; however, in patients with high-grade T1a or T1b ER+/HER2-/LN- breast cancer, RS analysis should be strongly considered.