Favorable survival with combined treatment in a metastatic breast cancer patient undergoing hemodialysis: A case report

Megumi Matsumoto, Hiroshi Yano, Ryota Otsubo, Aya Tanaka, Takeshi Nagayasu
International Journal of Surgery Case Reports 2021 January 15, 79: 206-209

INTRODUCTION: Management of breast cancer patients undergoing hemodialysis (HD) is difficult because of a lack of evidence about drug selection, dose adjustment, and surgical procedures. We herein present a case of metastatic breast cancer in a patient undergoing HD.

PRESENTATION OF CASE: A 58-year-old Japanese woman with breast cancer undergoing HD underwent total mastectomy of the left breast and left axillary dissection. Histopathological examination revealed invasive ductal carcinoma, and the diagnosis was pT2N3cM0 Stage ⅢC. Immunostaining of the resected specimen indicated that the tumor was estrogen receptor-positive, progesterone receptor-negative, human epithelial growth factor receptor 2-positive, and the Ki-67 labeling index was 70%. A postoperative positron emission tomography/computed tomography (PET/CT) scan indicated fluorodeoxyglucose uptake in the supraclavicular nodes. She received adjuvant therapy of epirubicin and cyclophosphamide followed by docetaxel, trastuzumab (T-mab) and radiation therapy. However, she developed multiple liver metastases during adjuvant T-mab and hormone therapy. Therefore, her regimen was changed to trastuzumab emtansine (T-DM1) as first-line therapy, T-mab, pertuzumab (P-mab), and eribulin as second-line therapy, and T-mab, P-mab, and weekly paclitaxel as third-line therapy. Eventually, she was administered fourth-line treatment of T-mab, P-mab, and vinorelbine because of adverse events. She has survived more than 25 months after the initial detection of recurrence of breast cancer and maintained quality of life.

CONCLUSION: We report a case of breast cancer in a patient undergoing HD. It is very difficult to identify the appropriate drugs and dosages in patients undergoing HD to improve survival and quality of life.

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