Clinical analysis of 14 cases of breast cancer therapy-related acute myeloid leukemia

Purpose: This study aims to summarize the clinical characteristics, treatment. and prognosis of breast cancer therapy-related acute myeloid leukemia (t-AML). Materials and Methods: Fourteen breast cancer patients with t-AML were enrolled. and their clinical characteristics, laboratory test results, treatment, and outcomes were retrospectively analyzed. Nine patients underwent bone marrow chromosome examination, of which five had balanced chromosomal translocations. Moreover, nine patients underwent fusion gene testing, and all nine cases were positive. Results: Three out of four patients with the M3 French-American-British subtype were in complete remission induced by treatment with tretinoin and daunorubicin; the fourth case stopped the chemotherapy. The remission rate of eight non-M3 patients with t-AML, who all received chemotherapy, was 50%. Breast cancer patients with t-AML were common in this study and had abnormal cytogenetics and molecular biology. Conclusions: Moreover, M3 breast cancer patients with t-AML achieved complete remission after chemotherapy. but non-M3 patients had a low remission rate.