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Inetetamab combined with pyrotinib and chemotherapy in the treatment of breast cancer brain metastasis: A case report

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World Journal of Clinical Cases 2024年第3期12卷 575-581页

作者： Qing-Qing Dou Ting-Ting Sun Guo-Qiang Wang Wei-Bing Tong Graduate Student Institute Inner Mongolia Medical UniversityHohhot 010000Inner Mongolia Autonomous RegionChina Central Breast Area B Beijing University Cancer Hospital Inner Mongolia HospitalHohhot 010000Inner Mongolia Autonomous RegionChina

BACKGROUND Breast cancer brain metastasis(BCBM)is an advanced breast disease that is difficult to treat and is associated with a high risk of *** prognosis is usually poor,with reduced quality of *** this context,we report the case of a patient with HER-2-positive BCBM treated with a macromolecular mAb(ine-tetamab)combined with a small molecule tyrosine kinase inhibitor(TKI).CASE SUMMARY The patient was a 58-year-old woman with a 12-year history of type 2 *** was compliant with regular insulin treatment and had good blood glucose *** patient was diagnosed with invasive carcinoma of the right breast(T3N1M0 stage IIIa,HER2-positive type)through aspiration biopsy of the ipsilateral breast due to the discovery of a breast tumor in February *** showed ER(-),PR(-),HER-2(3+),and Ki-67(55-60%+).Preoperative neoadjuvant chemotherapy,i.e.,the AC-TH regimen(epirubicin,cyclophosphamide,docetaxel-paclitaxel,and trastuzumab),was administered for 8 *** underwent modified radical mastectomy of the right breast in November 2019 and received tocilizumab targeted therapy for 1 *** metastasis was found 9 mo after *** underwent brain metastasectomy in August *** showed ER(-)and PR.(-),HER-2(3+),and Ki-67(10-20%+).In November 2020,the patient experienced headache *** an examination,tumor recurrence in the original surgical region of the brain was observed,and the patient was treated with inetetamab,pyrotinib,and ***-brain radiotherapy was *** patient and her family refused radiotherapy for personal *** September 2021,a routine examination revealed that the brain tumor was considerably *** original systemic treatment was continued and combined with intensity-modulated radiation therapy for brain metastases,followed by regular hospitalization and routine *** patient’s condition is generally stable,and she has a relatively high qua

关键词： Breast cancer brain metastasis resistance to trastuzumab Macromolecule inetetamab Small molecule tyrosine kinase inhibitor Radiation therapy HER2-positive Case report

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