AUTHOR=Ma Xuefeng , Yan Yunyu , Cai Pengli , Liu Ying , Zhang Ranxu , Dong Yanhong , Liu Song , Li Junfei , Zhao Jian , Zhang Ping 

TITLE=Case report: Single patellar metastasis of breast cancer

JOURNAL=Frontiers in Endocrinology

VOLUME=16

YEAR=2025

URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1488216

DOI=10.3389/fendo.2025.1488216

ISSN=1664-2392