AUTHOR=Liu Han , Tian Leilei , Mu Jianhua , He Xuanhong , Zhuangzhuang Li , Gong Taojun , Wang Jingjing , Min Li , Lu Minxun , Tu Chongqi 

TITLE=The resection of extraosseous osteosarcoma was accompanied by the occurrence of pulmonary metastasis and distal metastasis at the primary site: a case report

JOURNAL=Frontiers in Oncology

VOLUME=Volume 15 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1549722

DOI=10.3389/fonc.2025.1549722

ISSN=2234-943X