Table 1.

Disease development process and the treatment line

Time	Disease development	Treatment
2019.07	Left breast swelling for 1 day	A modified radical surgery for left breast cancer and eight cycles of intravenous chemotherapy with AC-T regimen
2020.09	Breast cancer metastasizes to sternum and parasternal soft tissue	One cycle of TCb (docetaxel + carboplatin) intravenous chemotherapy
2021.01	An increasing range of chest wall recurrence considered as tumor progression	Two cycles of NP (vinorelbine + cisplatin) chemotherapy regimen
2021.04	Tumor progression	Three cycles of camrelizumab
2021.07	Recurrence and chest wall metastasis	Radiotherapy + anlotinib targeting therapy
2022.01	Abnormal vaginal bleeding for 2 months	Excision of vaginal mass
2022.01	Orbital metastases	Orbital radiotherapy followed by three cycles of eribulin and bevacizumab
2022.10	The patient died of multiple metastases