RELATIONSHIP BETWEEN IHC4 SCORE AND MOLECULAR SUBTYPE OF POSITIVE HORMON RECEPTOR BREAST CANCER WITH STAGE I-II

Nguyễn Văn Chủ, Chu Thị Trang

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Abstract

Risk stratification and molecular subgroup in BC patients with early stage is very important, in order to provide appropriate adjuvant therapy, to avoid over or under treatment for the patient. Purpose: Evaluation of the association between IHC4 risk groups and the molecular type of positive HR breast cancer with stage I-II. Methods: 226 breast cancer patients were classified in risk and molecular subgroup by IHC stain and evaluating their relations. Results: The low-risk group was the most common in the subgroup luminal A (accounting for 73.7%). In contrast, subtype luminal B HER2 + had the highest proportion (38.0%) in the high IHC4. Conclusion: The low-risk group had the highest proportion in the subgroup luminal A, whereas the high-risk group was mainly found in the subtype luminal B HER2 +.

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References

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