AUTHOR=Zheng Chenhui , Dai Jingjing , Wang Yu , Zheng Danni , Lin Renzhi , Zheng Zhibao TITLE=Symptomatic bone marrow metastasis in triple-negative breast cancer: a case report and literature review JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1570355 DOI=10.3389/fonc.2025.1570355 ISSN=2234-943X