AUTHOR=Li Hanhan , Chen Ruilian , Guo Wei , Xiang Shang , Huang Jiayang , Chen Hanrui TITLE=Immunotherapy as a neoadjuvant preoperative treatment for locally advanced pulmonary sarcomatoid carcinoma: a case report of clinical efficacy JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1483766 DOI=10.3389/fonc.2025.1483766 ISSN=2234-943X