AUTHOR=Liang Na , Chen Changxian , Yuan Dan , Xu Qiang , Zhan Yali , Zhao Yi , Wu Di , Yang Cheng , Li Chunming TITLE=Diagnostic challenges of primary central nervous system histiocytic sarcoma: 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.2025.1551157 DOI=10.3389/fonc.2025.1551157 ISSN=2234-943X